crosby secretary administration finance massachusetts et al national foreign trade council argued march decided june massachusetts passed law barring state entities buying goods services companies business burma subsequently congress imposed mandatory conditional sanctions burma respondent hereinafter council several members affected state act filed suit petitioner state officials hereinafter state federal claiming state act unconstitutionally infringes federal foreign affairs power violates foreign commerce clause preempted federal act district permanently enjoined state act enforcement first circuit affirmed held state act preempted application unconstitutional supremacy clause pp even without express preemption provision state law must yield congressional act congress intends occupy field california arc america extent conflict federal statute hines davidowitz find preemption impossible private party comply state federal law state law obstacle accomplishment execution congress full purposes objectives sufficient obstacle determined examining federal statute identifying purpose intended effects state act obstacle undermines intended purpose natural effect least three federal act provisions pp first state act obstacle federal act delegation discretion president control economic sanctions burma although congress put initial sanctions place authorized president terminate measures upon certifying burma made progress human rights democracy impose new sanctions upon findings repression importantly suspend sanctions interest national security within sphere defined congress statute given president much discretion exercise economic leverage burma eye toward national security law permits plenitude executive authority controls preemption issue president authority merely make political statement achieve political result fullness authority shows importance congressional mind reaching result implausible think congress gone lengths empower president willing compromise effectiveness allowing state local ordinances blunt consequences actions yet exactly state act sanctions immediate perpetual termination provision unyielding application undermines president authority leaving less economic diplomatic leverage federal act permits pp second state act interferes congress intention limit economic pressure burmese government specific range state act stands clear contrast federal act prohibits contracts permitted federal act affects investment federal act reaches foreign domestic companies federal act confines reach persons thus conflicts federal law penalizing individuals conduct congress explicitly exempted excluded sanctions two acts common end hardly neutralizes conflicting means fact companies may able comply sets sanctions mean state act odds achievement congressional decision right calibration force pp finally state act odds president authority speak among world nations develop comprehensive multilateral burma strategy congress called presidential cooperation countries developing strategy directed president encourage dialogue burmese government democratic opposition required report congress efforts delegation power like economic sanctions invested president maximum authority national government state act undermines president capacity effective diplomacy response passage foreign governments filed formal protests national government lodged formal complaints world trade organization executive consistently represented state act complicated dealing foreign sovereigns proven impediment accomplishing objectives assigned congress case positions foreign governments executive competent direct evidence state act frustration congressional objectives barclays bank plc franchise tax bd distinguished pp state remaining argument congress failure preempt state local sanctions demonstrates implicit permission unavailing existence conflict cognizable supremacy clause depend express congressional recognition federal state law may conflict failure provide preemption expressly may reflect nothing settled character implied preemption courts dependably apply pp affirmed souter delivered opinion rehnquist stevens kennedy ginsburg breyer joined scalia filed opinion concurring judgment thomas joined stephen crosby secretary tion finance massachusetts et petitioners national foreign trade council writ certiorari appeals first circuit june justice souter delivered opinion issue whether burma law commonwealth massachusetts restricting authority agencies purchase goods services companies business invalid supremacy clause national constitution owing threat frustrating federal statutory objectives hold june massachusetts adopted act regulating state contracts companies business burma myanmar mass acts ch codified mass laws statute generally bars state entities buying goods services person defined include business organization identified restricted purchase list business burma although statute general provision waiver termination ban exempt boycott entities present burma solely report news provide international telecommunication goods services medical supplies business defined broadly cover person principal place business place incorporation corporate headquarters burma myanmar operations leases franchises subsidiaries distribution agreements similar agreements burma myanmar subsidiary licensee franchise person providing financial services government burma myanmar including providing direct loans underwriting government securities providing consulting advice assistance providing brokerage services acting trustee escrow agent otherwise acting agent pursuant contractual agreement promoting importation sale gems timber oil gas related products commerce largely controlled government burma myanmar burma myanmar providing goods services government burma myanmar three exceptions ban procurement essential without restricted bid bids insufficient competition procurement medical supplies procurement efforts elicit comparable low bid offer person business burma meaning offer percent greater restricted bid enforce ban act requires petitioner secretary administration finance maintain restricted purchase list firms business burma september three months massachusetts law enacted congress passed statute imposing set mandatory conditional sanctions burma see foreign operations export financing related programs appropriations act stat enacted omnibus consolidated appropriations act stat federal act five basic parts three substantive two procedural first imposes three sanctions directly burma bans aid burmese government except humanitarian assistance counternarcotics efforts promotion human rights democracy statute instructs representatives international financial institutions vote loans assistance burma provides entry visa shall issued burmese government official unless required treaty staff burmese mission nations restrictions remain effect ntil time president determines certifies congress burma made measurable substantial progress improving human rights practices implementing democratic government second federal act authorizes president impose sanctions subject certain conditions may prohibit persons new investment burma shall determines certifies congress burmese government physically harmed rearrested exiled daw aung san suu kyi opposition leader selected receive nobel peace prize committed repression violence democratic opposition new investment defined entry contract favor economical development resources located burma provide ownership interests benefits development term specifically excludes thus excludes presidential prohibition entry performance financing contract sell purchase goods services technology ibid third statute directs president work develop comprehensive multilateral strategy bring democracy improve human rights practices quality life burma instructed cooperate members association southeast asian nations asean countries major trade investment interests burma devise approach pursue additional objective fostering dialogue ruling state law order restoration council slorc democratic opposition groups ibid procedural provisions federal statute fourth section requires president report periodically certain congressional committee chairmen progress toward democratization better living conditions burma well development required strategy fifth part federal act authorizes president waive temporarily permanently sanction federal act determines certifies congress application sanction contrary national security interests may president issued burma executive order exec order cfr certified purposes government burma committed repression democratic opposition burma found burmese government actions policies constituted unusual extraordinary threat national security foreign policy threat characterized national emergency president prohibited new investment burma persons exec order approval facilitation person new investment foreign persons transaction meant evade avoid ban order generally incorporated exceptions exemptions addressed statute finally president delegated secretary state tasks working asean countries develop strategy democracy human rights quality life burma making required congressional ii respondent national foreign trade council council nonprofit corporation representing companies engaged foreign commerce members massachusetts restricted purchase list national foreign trade council natsios three withdrew burma passage state act one member bid procurement contract increased percent provision state law allowing acceptance low bid listed bidder bid percent higher ibid april council filed suit district district massachusetts seeking declaratory injunctive relief petitioner state officials charged administering enforcing state act refer simply state council argued state law unconstitutionally infringed federal foreign affairs power violated foreign commerce clause preempted federal act detailed stipulations briefing argument district permanently enjoined enforcement state act holding unconstitutionally impinge federal government exclusive authority regulate foreign affairs national foreign trade council baker supp mass appeals first circuit affirmed three independent grounds found state act unconstitutionally interfered foreign affairs power national government zschernig miller see violated dormant foreign commerce clause const art cl see preempted congressional burma act see state petition certiorari challenged decision three grounds asserted interests said shared state local governments similar though opposing certiorari council acknowledged significance issues need settle constitutionality laws regulations brief opposition granted certiorari resolve important questions affirm iii fundamental principle constitution congress power preempt state law art vi cl gibbons ogden wheat savage jones california arc america even without express provision preemption found state law must yield congressional act least two circumstances congress intends federal law occupy field state law area preempted cf locke slip citing charleston western carolina varnville furniture even congress occupied field state law naturally preempted extent conflict federal hines davidowitz arc america supra locke supra slip find preemption impossible private party comply state federal law see florida lime avocado growers paul circumstances particular case challenged state law stands obstacle accomplishment execution full purposes objectives congress hines supra sufficient obstacle matter judgment informed examining federal statute whole identifying purpose intended effects question whether federal act overrides state law entire scheme statute must course considered needs must implied less force expressed purpose act otherwise accomplished operation within chosen field else must frustrated provisions refused natural effect state law must yield regulation congress within sphere delegated power savage supra quoted hines supra applying standard see state burma law obstacle accomplishment congress full objectives federal find state law undermines intended purpose natural effect least three provisions federal act delegation effective discretion president control economic sanctions burma limitation sanctions solely persons new investment directive president proceed diplomatically developing comprehensive multilateral strategy towards first congress clearly intended federal act provide president flexible effective authority economic sanctions burma although congress immediately put place set initial sanctions prohibiting bilateral aid support international financial assistance entry burmese officials authorized president terminate measures upon determining certifying progress human rights democracy burma invested president power ban new investment persons dependent specific presidential findings repression burma significantly congress empowered president waive temporarily permanently sanction federal act determines certifies congress application sanction contrary national security interests express investiture president statutory authority act imposing sanctions respect government burma augmented flexibility respond change suspending sanctions interest national security recalls justice jackson observation youngstown sheet tube sawyer president acts pursuant express implied authorization congress authority maximum includes possesses right plus congress delegate see also noting president power area foreign relations least restricted congress citing export within sphere defined congress statute placed president position much discretion exercise economic leverage burma eye toward national security law admit plenitude executive authority think controls issue preemption president given authority merely make political statement achieve political result fullness authority shows importance congressional mind reaching result simply implausible congress gone lengths empower president willing compromise effectiveness deference every provision state statute local ordinance might enforced blunt consequences discretionary presidential massachusetts burma law imposing different state system economic pressure burmese political regime seen state statute penalizes private action federal act administered president may allow pulls levers influence federal act reach point state sanctions see mass acts ch restricting contracts law effective date mass gen laws authorizing regulations timely effective implementation perpetual termination provision see restricted companies list updated least every three months unyielding application undermines president intended statutory authority making impossible restrain fully coercive power national economy may choose take discretionary action open whether believes national interest requires sanctions lifted believes promise lifting sanctions move burmese regime democratic direction quite simply massachusetts law enforceable president less offer less economic diplomatic leverage consequence dames moore regan used metaphor bargaining chip describe president control funds valuable hostile country state act reduces value chips created federal thus stands obstacle accomplishment execution full purposes objectives congress hines congress manifestly intended limit economic pressure burmese government specific range federal act confines reach persons imposes limited immediate sanctions places conditional ban carefully defined area new investment pointedly exempts contracts sell purchase goods services technology detailed provisions show congress calibrated burma policy deliberate effort steer middle path hines supra state set different course statute conflicts federal law number points penalizing individuals conduct congress explicitly exempted excluded sanctions state act differs federal relying entirely indirect economic leverage third parties burmese connections otherwise stands clear contrast congressional scheme scope subject matter addressed restricts contracts state companies business burma except purchasing medical supplies essentials short comparable bids specific targeting contracts provide financial services general goods services government burma thus prohibits contracts state persons goods services technology even though transactions explicitly exempted ambit new investment prohibition president exercises discretionary authority impose sanctions federal act subject business meant affected class companies state act generality stands odds federal discreteness massachusetts law directly indirectly imposes costs companies business burma save reporting news providing international telecommunications goods services medical supplies sanctions companies promoting importation natural resources controlled government burma operations affiliates burma state act thus penalizes companies affiliates investments lie beyond reach federal act restrictions new investment burmese economic development state act moreover imposes restrictions foreign companies well domestic whereas federal act limits reach persons conflicts rendered irrelevant state argument real conflict statutes share goals companies may comply sets restrictions see brief petitioners fact common end hardly neutralizes conflicting see gade national solid wastes management fact companies may able comply sets sanctions mean state act odds achievement federal decision right degree pressure employ see hines quoting garner teamsters sanctions drawn bar prohibit allow permit inconsistency sanctions undermines congressional calibration force finally state act odds president intended authority speak among world nations developing comprehensive multilateral strategy bring democracy improve human rights practices quality life burma congress called presidential cooperation members asean countries developing strategy directed president encourage dialogue government burma democratic opposition required report congress progress diplomatic efforts congress explicit delegation president power economic sanctions congress express command president take initiative among international community invested maximum authority national government cf youngstown sheet tube harmony president constitutional powers art ii cl president shall power advice consent senate make treaties shall appoint ambassadors public ministers consuls president shall receive ambassadors public ministers clear mandate invocation exclusively national power belies suggestion congress intended president effective voice obscured state local action state act undermines president capacity instance effective diplomacy merely differences state federal acts scope type sanctions threaten complicate discussions compromise capacity president speak nation one voice dealing governments need get general consideration limits state action affecting foreign affairs realize president maximum power persuade rests capacity bargain benefits access entire national economy without exception enclaves fenced inconsistent political exceptions qualify capacity present coherent position behalf national economy weakened course dealing burmese regime working together nations hopes reaching common policy comprehensive cf dames moore threat president power speak bargain effectively nations seems clear enough record replete evidence answer skeptics first response passage state act number country allies trading partners filed formal protests national government see noting protests japan european union eu asean including official note verbale eu department state protesting state eu officials warned state act damaging effect bilateral relations hugo paemen ambassador european union delegation european commission william weld governor state massachusetts app second eu japan gone step lodging formal complaints world trade organization wto claiming state act violates certain provisions agreement government doc consequence embroil national government time international dispute proceedings auspices wto brief eu officials point wto dispute threatening relations brief european communities et al amici curiae note state act become topic intensive discussions officials highest levels discussions including exchanges twice yearly third executive consistently represented state act complicated dealings foreign sovereigns proven impediment accomplishing objectives assigned congress assistant secretary state larson example directly addressed mandate federal burma law saying imposition unilateral state sanctions state act complicates efforts build coalitions allies promote democracy human rights burma larson state local sanctions remarks council state governments eu opposition massachusetts law meant government high level discussions eu officials often focused burma massachusetts burma law point consistently echoed state department massachusetts sanctions burma adopted pursuit noble goal restoration democracy burma measures also risk shifting focus debate european allies away best way bring pressure state law order restoration council slorc potential wto dispute consistency international obligations let clear working massachusetts wto dispute settlement process must honest saying threatened wto case risks diverting europe attention focusing burma eizenstat testimony app evidence combination sufficient show state act stands obstacle addressing congressional obligation devise comprehensive multilateral strategy discussion barclays bank plc franchise tax bd limited weight evidence formal diplomatic protests risk foreign retaliation statements executive undercut point barclays question preemptive effect federal tax law state tax law discriminatory extraterritorial effects found reactions foreign powers opinions executive irrelevant fathoming congressional intent congress taken specific actions rejecting positions foreign governments executive however congress done nothing render evidence beside point consequence statements foreign powers necessarily involved president efforts comply federal act indications concrete disputes powers opinions senior national government officials competent direct evidence frustration congressional objectives state although unquestioningly defer legal judgments expressed executive branch statements determining federal act preemptive character never questioned competence show practical difficulty pursuing congressional goal requiring multinational agreement recognized limits capacity determin precisely foreign nations offended particular acts container america franchise tax consistently acknowledged nuances foreign policy much province executive branch congress barclays supra case repeated representations executive branch supported formal diplomatic protests concrete disputes sufficient demonstrate state act stands way congress diplomatic iv state remaining argument unavailing contends failure congress preempt state act demonstrates implicit permission state points congress repeatedly declined enact express preemption provisions aimed state local sanctions calls attention large number measures passed south africa various authorities cited thought state stresses congress aware state act preempt explicitly adopted burma state us conclude congress continuing failure enact express preemption implies approval particularly light occasional instances express preemption state sanctions argument unconvincing one level failure provide preemption expressly may reflect nothing settled character implied preemption doctrine courts dependably apply event existence conflict cognizable supremacy clause depend express congressional recognition federal state law may conflict hines state inference congressional intent unwarranted therefore simply silence congress ambiguous since never ruled whether state local sanctions south africa preempted otherwise invalid arguable parallels two sets federal state acts tell us much validity latter state act provisions conflict congress specific delegation president flexible discretion limitation sanctions limited scope actions actors direction develop comprehensive multilateral strategy federal act preempted application unconstitutional supremacy clause judgment appeals first circuit affirmed ordered stephen crosby secretary tion finance massachusetts et petitioners national foreign trade council writ certiorari appeals first circuit june justice scalia justice thomas joins concurring judgment perfectly obvious face statute congress concurrence president intended provid president flexibility implementing burma sanctions policy ante therefore see point devoting interesting albeit unsurprising proposition tatements sponsors federal act show shared intent statement letter state department officer shows flexibility explicit support executive ante excursus especially pointless since immediately succeeding must rely upon statute devoid support statements sponsors executive refute quite telling argument statements addressed flexibility administering sanctions federal act said nothing state sanctions see ante perfectly obvious face statute congress expected president use discretionary authority sanctions move burmese regime democratic direction ante therefore see point devoting interesting albeit unsurprising proposition sponsors federal act shared expectation ante perfectly obvious face statute congress burma policy calibrated one limit ed economic pressure burmese government specific range ante therefore see point devoting interesting albeit unsurprising proposition bills imposing greater sanctions introduced adopted ante even less surprising proposition sponsors legislation made clear limits deliberate ante feel way even shared na assumption failure bill make committee adopted reported floor congressional reject ion bill contained ibid curiously later recognizes rejecting argument congress failure enact express preemption implies approval state act silence congress may ambiguous ante come conclusion relied several times upon implications congress failure enact legislation see ante perfectly obvious face statute congress intended president develop multilateral strategy cooperation countries fact statute says many words see stat therefore see point devoting two footnotes interesting albeit unsurprising proposition three senators also favored multilateral approach ante perfectly obvious record discusses ante inflexibility produced massachusetts statute fact caused difficulties allies fact impeded multilateral strategy later says another context existence conflict cognizable supremacy clause depend express congressional recognition federal state law may conflict ante therefore see point devoting interesting albeit unsurprising fact congressional sponsors act executive actually predicted inflexibility effect causing difficulties allies impeding multilateral strategy ante course even invocations legislative history utterly irrelevant still object since neither statements individual members congress ordinarily addressed virtually empty floor executive statements letters addressed congressional committees nonenactment proposed legislation reliable indication majority houses congress intended voted statute us reliable indication intent thing know sure attributed words bill voted make law way using unreliable legislative history confirm statute plainly says anyway record plainly shows less objectionable since absolutely effect upon outcome way utter lack necessity makes even worse calling mind augustine enormous remorse stealing pears even hungry devil seeking aught shame shame confessions book great books western world pusey trans case portion opinion consider irrelevant quite extensive comprising total opinion size since type even opinion content consider wasteful preordained essay harmful since tells future litigants even statute clear face effects clear upon record statements legislative history may help presumably harm case must researched discussed counsel makes appellate litigation considerably time consuming hence considerably expensive need mind outweighs arguable good may come persistent irrelevancy least indulged margins may encourage readers ignore footnotes reason join judgment footnotes appeals noted ruling military government burma changed country name myanmar said use name burma since parties amici curiae state law federal law national foreign trade council natsios follow suit noting use term like first circuit intended express political view see ibid according district companies may challenge inclusion list submitting affidavit stating business burma national foreign trade council baker supp mass massachusetts executive office operational services division makes final determination ibid president also delegated authority implement policy secretary treasury consultation secretary state may secretary treasury issued federal regulations implementing president executive order see cfr pt burmese sanctions regulations one state offices changed incumbents twice litigation reaching see national foreign trade council natsios ca granted certiorari least nineteen municipal governments enacted analogous laws restricting purchases companies business burma pet cert citing admin code los angeles admin code art et seq philadelphia code vermont res laws recognize course categories preemption rigidly distinct english general elec variety state laws regulations may conflict federal statute whether private party comply sets provisions objectives federal statute frustrated field may understood species conflict see also gade national solid wastes management quoting english supra souter dissenting noting similarity field citing tribe american constitutional law ed tribe american constitutional law ed noting field tion may fall categories express implied conflict preemption state concedes must addressing subject federal act congress power preempt state statute see reply brief petitioners tr oral arg add already rejected argument state statutory scheme escapes exercise state spending power rather regulatory power wisconsin dept industry gould gould found wisconsin statute debarring repeat violators national labor relations act et contracting state preempted state statute additional enforcement mechanism conflicted federal act gould fact state ha chosen use spending power rather police power reduce potential conflict federal statute ibid leave another day consideration context presumption preemption see locke slip assuming arguendo presumption preemption appropriate conclude based analysis state act presents sufficient obstacle full accomplishment congress objectives federal act find preempted see hines davidowits conclusion state act conflicts federal law sufficient affirm judgment decline speak field preemption separate issue see supra pass first circuit rulings addressing foreign affairs power dormant foreign commerce clause see ashwander tva concurring opinion statements sponsors federal act underscore statute clarity providing president flexibility implementing burma sanctions policy see cong rec emphasizing importance providing administration flexibility reacting changes positive negative respect behavior burmese regime statement principal sponsor cohen describing federal act giv ing president whether democrat republican charged conducting nation foreign policy flexibility statement cosponsor mccain need able flexibility remove sanctions provide support burma reaches transition stage moving toward restoration democracy us support statement cosponsor feinstein sponsors chose pliant policy explicit support executive see letter barbara larkin assistant secretary legislative affairs department state cohen admitted unanimous consent believe current conditional sanctions language proposes consistent administration policy stated several occasions past need maintain flexibility respond events burma consult congress appropriate responses ongoing future development state makes arguments read suggest congress objective presidential flexibility limited discretion solely sanctions federal act congress implicitly left control state sanctions state brief petitioners reject cramped view congress intent weight evidence congress made explicit statement limited objectives importantly federal act strongly indicates opposite example federal act congress explicitly identified protecting national security interests ground president suspend federal sanctions stat find unlikely congress intended enable president protect national security giving flexibility suspend terminate federal sanctions simultaneously allow massachusetts act odds president judgment national security requires provisions strongly resemble immediate sanctions investment appeared proposed section congress rejected favor federal act see sponsors federal act obviously anticipated analysis see cong rec statement feinstein may able effect nudging slorc toward increased dialog democratic opposition also allow president lift sanctions fact congress repeatedly considered rejected targeting broader range conduct lends additional support view importantly federal act passed replaced original proposed section barred investment burma national without exception limitation see congress also rejected competing amendment sess similarly provided nationals shall make investment burma permitted president impose conditional sanctions importation articles produced manufactured grown extracted burma barred travel nationals burma congress rejected earlier amendment prohibited investment burma subject president power lift sanctions sess july statements sponsors federal act also lend weight conclusions limits deliberate see cong rec statement breaux characterizing federal act strik ing balance unilateral sanctions burma unfettered investment country scope exemptions discussed see ibid statements sens nickles cohen broader sanctions rejected see statement cohen statement murkowski instead current draconian sanctions proposed legislation us adopt approach effectively secures national interests state reliance cts dynamics america proposition state law furthers purpose federal law find conflict misplaced see brief petitioners cts found indiana state securities law ed federal policy investor protection also examined whether state law conflicted federal law implementing goal ibid identity ends end analysis preemption see gould record supports conclusion congress considered development multilateral sanctions strategy central objective federal act see cong rec remarks cohen effective american policy burma coordinated asian friends allies remarks feinstein multilateral approach likely successful concerns raised president representatives executive branch see testimony secretary state eizenstat trade subcommittee house ways means committee hereinafter eizenstat testimony app nless sanctions measures well conceived coordinated speaking one voice consistent international obligations uncoordinated responses put us political defensive shift attention away problem issue sanctions expressed similar concerns cases foreign commerce foreign relations see japan line county los angeles chy lung freeman cf federalist pp cooke ed hamilton peace whole left disposal part union undoubtedly answerable foreign powers conduct members record reflects sponsors federal act well aware concern provided flexibility president sanctions reason see cong rec statement thomas although readily admit present relationship burma especially deep imposition mandatory sanctions certainly downgrade little relationship moreover affect relations many allies asia try corral following lead statement feinstein absolutely essential pressure seek put government burma coordinated nations asean european asian allies act unilaterally likely opposite effect alienating many allies real impact ground amicus briefs courts eu consistently taken position state act created issue serious concern relations brief european communities et al amici curiae although wto dispute proceedings suspended request japan eu light district ruling letter ole lundby chairman panel ambassadors european union japan since automatically lapsed understanding rules procedures governing settlement disputes international legal materials neither parties barred reinstating wto procedures challenge state act future fact eu amicus us specifically represents intends begin new wto proceedings current injunction law lifted brief european communities et al amici curiae express opinion merits proceedings senior level group report summit washington http assistant secretary larson also declared state law hindered ability speak one voice grave human rights situation burma become significant irritant relations eu impeded efforts build strong multilateral coalition burma massachusetts eu share common goal assistant secretary state alan larson state local sanctions remarks council state governments brief amicus curiae continues advance position us see brief amicus curiae conclusion consistently presented senior officials see also testimony deputy assistant secretary state david marchick california state assembly app testimony deputy assistant secretary state david marchick maryland house delegates committee commerce government matters mar find support conclusion statements congressional sponsors federal act indicated opinion inflexible unilateral action likely cause difficulties relations allies crafting effective policy toward burma see supra moreover facts executive specifically called flexibility prior passage federal act congress rejected less flexible alternatives adopted current law response executive communications bolster relevance executive opinion regard ability accomplish congress goals see supra state appears argue ignore evidence wto dispute federal law implementing general agreement tariffs trade gatt congress foreclosed suits private persons foreign governments challenging state law basis gatt federal state courts allowing national government raise challenge see uruguay round agreements act urra stat see also statement administrative action saa reprinted doc pp consider evidence view effectively violate ban allowing private parties foreign nations challenge state procurement laws domestic courts terms uraa saa simply support argument refer challenges state law based inconsistency uruguay round agreements challenge based federal burma law reject state argument national government decisions bar wto suits decline bring suit massachusetts burma law evince approval actions simply speak preemptive effect federal sanctions burma see board trustees mayor city council baltimore md holding local divestment ordinance preempted comprehensive act caaa cert denied subnom lubman mayor city council baltimore constitutionality south african divestment statutes enacted state local goverments op legal counsel wl state local divestment selective purchasing laws preempted federal law res nos denying preemptive intent caaa cong rec house debate resolutions kennedy quoting testimony laurence tribe amicus members congress support state also note congress revoked federal sanctions response democratic transition country refused preempt state local measures merely urg ing state local governments private boycott participants rescind sanctions brief senator boxer et al amici curiae citing south african democratic transition support act stat state also finds significant fact congress preempt state local sanctions recent sanctions reform bill even though sponsor seemed aware measures see cong rec hamilton see export administration act app ed boycott israel provisions expressly preempt law rule regulation footnotes debate bill became present act seems respect departed ordinary cf cong rec statement mcconnell noting debate regarding amendment take next see anyone democratic side chamber