North Dakota v. United States, 495 U.S. 423 (1990)

Justice BRENNAN, with whom Justice MARSHALL, Justice BLACKMUN and Justice KENNEDY join, concurring in the judgment in part and dissenting in part.

I concur in the Court’s judgment that North Dakota’s reporting requirement is lawful, but cannot join the Court in upholding that State’s labeling requirement. I cannot join the plurality, because it underestimates the degree to which North Dakota’s law interferes with federal operations and derogates the Federal Government’s immunity from such interference, which is secured by the Supremacy Clause. I cannot join Justice SCALIA, because his approach is at odds with our decision in United States v. Mississippi Tax Comm’n, 421 U.S. 599 (1975) (Mississippi Tax Comm’n II).

I

The labeling requirement imposed by North Dakota is not a trifling inconvenience necessary to the State’s regulatory regime. An importer or distiller supplying the United States military bases in North Dakota must not only purchase or manufacture special labels and affix one to each bottle, it also must segregate and then track those bottles throughout the remainder of its manufacturing and distribution process. The special label requirement throws a wrench into the firm’s entire production system. The cost of complying with the regulation, therefore, is far greater than the few pennies per label acknowledged by the plurality. See ante at 428-429. Five of the Government’s suppliers have declined to continue shipping to the military bases in North Dakota as a direct result. The five firms are the primary United States distributors for nine popular brands of liquor: Chivas Regal scotch, Johnnie Walker scotch, Tanqueray gin, Canadian Club whiskey, Courvoisier cognac, Jim Beam bourbon, Seagrams 7 Crown whiskey, Smirnoff vodka, and Jose Cuervo tequila. The U.S. importer of Beefeaters gin agreed to continue doing business, but only at a price increase of up to $20.50 per case. The suppliers of these brands potentially still available to fill the military’s needs are either companies operating further down the distribution chain than these distillers and importers, who might be willing to undertake the onerous labeling requirement and duly charge the Government for their trouble, or North Dakota’s own liquor wholesalers, who are exempt from the requirement.

The labeling requirement, furthermore, cannot be considered "necessary" to the State’s liquor regulatory regime by any definition of the term. The State could achieve the same result in its effort to "prevent the unlawful diversion of liquor into [its] regulated intrastate markets," ante at 431, by instead requiring special labels on liquor shipped to in-state wholesalers. Such labels would accomplish precisely the same goal -- providing a means for state police to distinguish legal bottles from illegal ones -- without interfering with federal operations. The State is also free to enforce its reporting requirement and take any other action that does not interfere with federal activities, including negotiating a mutual enforcement program with the military, which is itself governed by a regulation prohibiting the kind of diversion that the State seeks to control. See DoD Directive 1015.3-R, ch. 4(F)(3) (May 1982).{1}

That North Dakota’s declared purpose for implementing the regulation is to discourage and police unlawful diversion of liquor into its domestic market does not prevent this Court from ruling on its constitutionality. To be sure, this Court has twice said that the States retain police power to regulate shipments of liquor through their territory "insofar as necessary to prevent" unlawful diversion in the absence of conflicting federal regulation. United States v. Mississippi Tax Comm’n, 412 U.S. 363, 377 (1973) (Mississippi Tax Comm’n I); see also Hostetter v. Idlewild Bon Voyage Liquor Corp., 377 U.S. 324, 333-334 (1964). Such statements were indications that this Court believed that States are not rendered utterly powerless in this respect by the dormant Commerce Clause. We have never held, however, that any regulation with this avowed purpose is insulated from review under the federal immunity doctrine or any other constitutional ground, including the dormant Commerce Clause. Nor have we ever upheld such a regulation, or any state regulation of liquor that clashed with some federal law or operation, on the basis of a "presumption of validity." Cf. ante at 433. Indeed, our previous, limited statements -- that States are not prevented by the Commerce Clause from regulating shipments of liquor through their territory where necessary to prevent diversion -- recognized that the regulations must be consistent with other constitutional requirements. See Mississippi Tax Comm’n I, supra, 412 U.S. at 377 (recognizing such state power only "in the absence of conflicting federal regulation"). Since the States’ power is limited by the doctrine of federal preemption, which flows from the Supremacy Clause, then that power must also be limited by the doctrine of federal immunity, which also flows from the Supremacy Clause.{2}

II

The plurality characterizes the doctrine of federal immunity as invalidating state laws only if they regulate the Federal Government directly or discriminate against the Government or those with whom it deals. See ante at 435. As the plurality recognizes,

a regulation imposed on one who deals with the Government has as much potential to obstruct governmental functions as a regulation imposed on the Government itself.

Ante at 438. But contrary to the plurality’s view, the rule to be distilled from our prior cases is that those dealing with the Federal Government enjoy immunity from state control not only when a state law discriminates, but also when a state law actually and substantially interferes with specific federal programs. See United States v. New Mexico, 455 U.S. 720, 735, n. 11 (1982) ("It remains true, of course, that state taxes are constitutionally invalid if they discriminate against the Federal Government, or substantially interfere with its activities"). Cf. James v. Dravo Contracting Co., 302 U.S. 134, 161 (1937) (permitting application of a general state tax to federal contractors on the ground that it did not discriminate against them or "interfere in any substantial way with the performance of federal functions"). North Dakota’s labeling regulation violates the Supremacy Clause under both standards. It substantially obstructs federal operations, and it discriminates against the Federal Government and its chosen business partners.

A

The plurality recognizes that we have consistently invalidated nondiscriminatory state regulations that interfere with affirmative federal policies, including those governing procurement, but designates these cases as resting on principles of preemption. See ante at 435 and 435-436, n. 7. This characterization is not only at odds with the reasoning in the opinions themselves, but suggests a rigid demarcation between the two Supremacy Clause doctrines of federal immunity and preemption which is not present in our cases. Whether a state regulation interferes with federal objectives is, of course, a central inquiry in our traditional preemption analysis. But when we have evaluated the validity of an obligation imposed by a State on the Federal Government and its business partners, we have justly considered whether the obligation interferes with federal operations as part of our federal immunity analysis.

In Leslie Miller, Inc. v. Arkansas, 352 U.S. 187 (1956), for example, we held that building contractors employed by the Federal Government were immune from a neutral Arkansas regulation requiring contractors to obtain a state license, because the regulation would give the State

a virtual power of review over the federal determination of "responsibility" and would thus frustrate the expressed federal policy of selecting the lowest responsible bidder.

Id. at 190. We found the following rationale applicable:

"It seems to us that the immunity of the instruments of the United States from state control in the performance of their duties extends to a requirement that they desist from performance until they satisfy a state officer upon examination that they are competent for a necessary part of them and pay a fee for permission to go on. Such a requirement does not merely touch the Government servants remotely by a general rule of conduct; it lays hold of them in their specific attempt to obey orders. . . ."

Ibid. (quoting Johnson v. Maryland, 254 U.S. 51, 57 (1920)). The plurality’s assertion that Leslie Miller, Inc., was not decided on immunity grounds, see ante at 436, n. 7, is inconsistent with that opinion’s own analysis.

In Public Utilities Comm’n of California v. United States, 355 U.S. 534 (1958), we found unconstitutional a state provision requiring common carriers to receive state approval before offering free or reduced rate transportation to the United States. We distinguished our cases sustaining nondiscriminatory state taxes, and found the regulation unconstitutional because it would have interfered with the Government’s policy of negotiating rates. Id. at 543-545. We explained that a decision in favor of California would have interfered with the activities of federal procurement officials, and would have required the Federal Government either to pay higher rates or to conduct separate negotiations with the regulatory divisions of, potentially, each of the then-48 States. Id. at 545-546.

Contrary to the plurality’s contention, ante at 435-436, n. 7, we concluded that the regulation was unconstitutional, not under preemption doctrine, but because it "place[d] a prohibition on the Federal Government" as significant as the licensing requirements invalidated in Leslie Miller, Inc. v. Arkansas, supra, and Johnson v. Maryland, supra, both decided on federal immunity grounds. See supra at 452-4523. Moreover, we relied on the following passage from McCulloch v. Maryland, 4 Wheat. 316, 427 (1819), which elucidates the doctrine of federal immunity:

It is of the very essence of supremacy to remove all obstacles to [federal] action within its own sphere, and so to modify every power vested in subordinate governments, as to exempt its own operations from their own influence. Furthermore, the Court’s rationale in Public Utilities Comm’n -- that a state regulation which obstructs federal operations is prohibited under the federal immunity doctrine -- is not inconsistent with our decisions sustaining state taxes solely on the ground that they do not discriminate against the Government or its business partners. Indeed, we sustained such a nondiscriminatory state tax on federal contractors the same day that we decided Public Utilities Comm’n. See United States v. City of Detroit, 355 U.S. 466, 472 (1958) (upholding the application of a state tax to lessees of federal property).{3}

In the companion cases of United States v. Georgia Public Service Comm’n, 371 U.S. 285 (1963), and Paul v. United States, 371 U.S. 245 (1963), we invalidated two other neutral state regulations because they interfered with the Federal Government’s chosen mode of procurement.{4} In Georgia Public Service Comm’n, supra, 371 U.S. at 292, we held that Georgia could not revoke the operating certificates of any moving company for undertaking a mass intrastate shipment of household goods for the Federal Government at volume discount rates, although such rates violated Georgia law, because federal regulations required government officers to secure the "`lowest over-all cost’" in purchasing transportation "through competitive bidding or negotiation." Similarly, in Paul v. United States, supra, we held that California minimum wholesale milk prices could not be enforced against sellers supplying United States military bases where federal regulations mandated "full and free competition" and selection of the "lowest responsible bidder" because the "California policy defeats the command to federal officers to procure supplies at the lowest cost to the United States." Id. at 252, 253.

North Dakota’s labeling regulation would interfere with the military’s ability to comply with affirmative federal policy in the same way as the regulations we invalidated in Public Utilities Comm’n of California v. United States, 355 U.S. 534 (1958), United States v. Georgia Public Service Comm’n, supra, and Paul v. United States, supra. As in those cases, the state regulation threatens to scuttle the Federal Government’s express determination to secure products and services in the most competitive manner possible. Federal law requires military officials to purchase distilled spirits "from the most competitive source, price and other factors considered." 10 U.S.C. § 2488(a). In enacting this standard, Congress made a deliberate choice to permit, and generally encourage, the military to buy liquor for its bases outside the States in which they are located. The "competitive source" provision replaced an earlier statute requiring bases to purchase all alcoholic beverages in-state. See Pub.L. 99-190, § 8099, 99 Stat. 1219. The statute’s legislative history shows that Congress determined that the military should be free to purchase distilled spirits out-of-state from the most competitive source, both to save money and to generate more funding for morale and welfare activities.{5}

For liquor, the most competitive sources are distillers and importers -- companies operating at the top of the national distribution chain. It is not only plausible that such companies would find it more trouble than it was worth to comply with North Dakota’s labeling requirement, five companies have already refused to fill orders for the North Dakota bases. At least one other firm has been willing to fill orders only at a substantially increased price. The regulation would force the military to lose some of the advantages of a highly competitive nationwide market, either because it would be subjected to special surcharges by out-of-state suppliers or forced to pay high in-state prices -- or some combination of these. Moreover, the difficulties presented by North Dakota’s labeling requirement would increase exponentially if additional States adopt equivalent rules, a consideration we found dispositive in Public Utilities Comm’n of California, supra, at 545-546. See also Memphis Bank & Trust Co. v. Garner, 459 U.S. 392, 398, n. 8 (1983) (rejecting the argument that a Tennessee bank tax that discriminated against federal obligations might be de minimis because, if every State enacted comparable provisions, the Federal Government would sustain significantly higher borrowing costs).

The regulation also intrudes on federal procurement in a manner not unlike the licensing requirement we found unacceptable in Leslie Miller, Inc. v. Arkansas, 352 U.S. 187 (1956). Just as Arkansas’ licensing regulation would have given that State a say as to which building contractor the Federal Government could hire, the North Dakota labeling requirement -- by acting as a deterrent to contracting with the Federal Government -- would prevent the Federal Government from making an unfettered choice among liquor suppliers. The military cannot effectively comply with Congress’ command to purchase from "the most competitive source" when a number of the most competitive sources -- distillers and importers -- are driven out of the market by the State’s regulation. Thus, North Dakota’s labeling regulation

"does not merely touch the Government servants remotely by a general rule of conduct; it lays hold of them in their specific attempt to obey orders."

Leslie Miller, Inc. v. Arkansas, supra, at 190 (quoting and applying Johnson v. Maryland, 254 U.S. at 57). Federal military procurement policies for distilled spirits, therefore, would be obstructed and, under this Court’s federal immunity doctrine, the regulation should fall.{6}

B

Even if I agreed with the plurality that our federal immunity doctrine proscribes only those state laws that discriminate against the Federal Government or its business partners, however, I would still find North Dakota’s labeling regulation invalid. North Dakota’s labeling regulation plainly discriminates against the distillers and importers who supply the Federal Government because it is applicable only to "liquor destined for delivery to a federal enclave in North Dakota." N.D.Admin.Code § 84-02-01-05(7) (1986). A state control that makes the Federal Government or those with whom it deals worse off than "their counterparts in the private sector" is discriminatory. Washington v. United States, 460 U.S. 536, 543 (1983).

The appropriate question is whether [someone] who is considering working for the Federal Government is faced with a cost he would not have to bear if he were to do the same work for a private party.

Id. at 541, n. 4. An importer or distiller for a particular brand has two kinds of potential customers in North Dakota: military bases and North Dakota wholesalers. For any liquor it sells to the military, it is required to buy or manufacture and affix special labels. Then it must monitor separately the handful of cases destined for the two military bases in North Dakota during the rest of the company’s manufacturing and shipping process, in order to ensure that only specially labeled bottles are sent to Grand Forks and Minot Air Force Bases. However, the same distiller could sell its product to a North Dakota liquor wholesaler without affixing special labels or reducing its economies of scale.{7} Washington v. United States, therefore, mandates a finding that the labeling requirement discriminates against those who deal with the Federal Government.{8}

The plurality attempts to reach the opposite result by arguing that we need to view the state regulatory scheme in its entirety to determine whether the Federal Government is better or worse off on the whole, in the endeavor affected by a seemingly discriminatory State law, than those given preferred treatment by that law. See ante at 435. This Court has never subscribed to such an approach. To the contrary, Washington v. United States, supra, which the plurality cites for this proposition, holds merely that, where

[t]he tax on federal contractors is part of the same structure, and imposed at the same rate, as the tax on the transactions of private landowners and contractors

it is nondiscriminatory. Id. at 545. In so deciding, the Court specifically cautioned that

[a] different situation would be presented if a State imposed a sales tax on contractors who work for the Federal Government, and an entirely different kind of tax, such as a head tax or a payroll tax, on every other business.

Id. at 546, n. 11.

In Washington v. United States, we found that the state building tax on federal contractors and the slightly larger building tax on private landowners placed no larger an economic burden on federal contractors than on private ones. The Court concluded that, although the legal incidence of the taxes was different -- one fell on the landowners directly and the other on the federal contractors -- the tax did not discriminate against federal contractors or the Federal Government because each tax would be reflected in the fees the contractors could charge. As a result, the Court concluded that the tax on the federal contractors cost them no more than the equivalent tax borne indirectly by their private counterparts, and very likely cost them less. Id. at 541-542.

The conclusion to be drawn from Washington v. United States is that North Dakota would not violate the federal immunity doctrine by placing a labeling requirement on the out-of-state distillers who supply the military bases within the State if it also imposed the same labeling requirement directly on the in-state wholesalers for all liquor purchased out-of-state. The plurality’s view, that the labeling regulation is not discriminatory unless the entire North Dakota liquor regulatory system places the Federal Government at a disadvantage competing with in-state wholesalers or retailers, is a different proposition altogether. See also Justice SCALIA’s opinion, ante at 448.

The plurality argues that, in this case, the State compensates the Federal Government for the discriminatory labeling requirement by prohibiting private retailers from buying liquor from out-of-state suppliers, and that therefore the Government is favored over other North Dakota retailers. There are core difficulties with this comparison. Since the regulation is imposed on out-of-state suppliers, the regulation would affect the Federal Government when it purchases liquor from those suppliers. The private parties within the State who are comparable, therefore, are North Dakota wholesalers who purchase liquor outside the State and resell it to the distributors and retailers farther down the distribution chain within the State -- not North Dakota retailers.

The appropriate comparison between the Federal Government and its actual private counterpart -- a North Dakota wholesaler -- cannot be made with confidence. The regulations that the plurality presumes are economically equivalent are so entirely unlike that it is wholly speculative that the impositions on in-state wholesalers are comparable to the imposition on the Federal Government and its suppliers. Such a comparison requires us to determine whether there is greater profit in buying from out-of-state distillers at a price that does not reflect the labeling requirement while reaping only the wholesaler’s markup, or more lucrative to buy from whomever will sell specially labeled liquor at whatever price this costs, but to reap the margin on retail sales. Even if the comparison could be made reliably at some set moment, there is no reason to expect the result to be the same every year; it would vary depending on the business conditions affecting each half of the equation.{9}

As is obvious, there is simply no assurance that North Dakota is actually regulating even-handedly when it taxes and licenses some and requires special product labels for others. The labeling regulation is not part of a larger scheme where like obligations are imposed, albeit at different stages of commerce, on federal and nonfederal suppliers. It is that "different situation," that we identified in Washington v. United States, where unlike and hard-to-compare obligations are imposed. Contrary to the plurality’s assertion, ante at 438, Washington v. United States does not require or even support a finding that the regulation is constitutional. To the contrary, when a State imposes an obligation, triggered solely by a federal transaction, that cannot be found with confidence to place the Federal Government and its contractors in as good or better a position than its counterparts in the private sector, our cases require a finding that the regulation is wholly impermissible.{10}

III

Justice SCALIA, alone, agrees with petitioner that § 2 of the Twenty-first Amendment{11} saves the labeling regulation because the regulation governs the importation of liquor into the State. I believe, however, that the question presented in this case, whether the Twenty-first Amendment empowers States to regulate liquor shipments to military bases over which the Federal Government and a State share concurrent jurisdiction, is one we have addressed before and answered in the negative. In Mississippi Tax Comm’n II, 421 U.S. 599 (1975),{12} we explained:

"[T]he Twenty-first Amendment confers no power on a State to regulate -- whether by licensing, taxation, or otherwise -- the importation of distilled spirits into territory over which the United States exercises exclusive jurisdiction."

Id. at 613, quoting Mississippi Tax Comm’n I, 412 U.S. at 375. We reach the same conclusion as to the concurrent jurisdiction bases to which Art. I, § 8, cl. 17, does not apply:

"Nothing in the language of the [Twenty-first] Amendment nor in its history leads to [the] extraordinary conclusion" that the Amendment abolished federal immunity with respect to taxes on sales of liquor to the military on bases where the United States and Mississippi exercise concurrent jurisdiction. . . .

. . . [I]t is a "patently bizarre" and "extraordinary conclusion" to suggest that the Twenty-first Amendment abolished federal immunity as respects taxes on sales to the bases where the United States and Mississippi exercise concurrent jurisdiction, and "now that the claim for the first time is squarely presented, we expressly reject it."

Mississippi Tax Comm’n II, supra, 421 U.S. at 613-614 (quoting Department of Revenue v. James B. Beam Distilling Co., 377 U.S. 341, 345-346 (1964), and Hostetter v. Idlewild Bon Voyage Liquor Corp., 377 U.S. at 332).

Appellants argue that Mississippi Tax Comm’n II is applicable only to taxes or other regulations imposed directly on the United States, because the legal incidence of the tax at issue in that case fell on the military, not its supplier. See 421 U.S. at 609. Petitioners’ reliance on this distinction, however, is misplaced. To be sure, a tax or regulation imposed directly on the Federal Government is invariably invalid under the doctrine of federal immunity whereas a tax or regulation imposed on those who deal with the Government is invalid only when it actually obstructs or discriminates against federal activity. But the labeling regulation at issue here and the tax at issue in Mississippi Tax Comm’n II, supra, violate the doctrine of federal immunity for precisely the same reason: they burden the Federal Government in its conduct of governmental operations. A state regulation that obstructs federal activity is invalid no matter whom it regulates. To the extent that petitioners assume that there are two doctrines of federal immunity -- one that protects the Government from direct taxation or regulation and one that protects the Government from the indirect effects of taxes or regulations imposed on those with whom it deals -- petitioners misconstrue the law.

Justice SCALIA argues that Mississippi Tax Comm’n II holds only that the Twenty-first Amendment did not override the Government’s immunity from state taxation, but did not reach the question whether the Amendment also overrode federal immunity from state regulation. See ante at 447-448. I agree that the Court had only a state tax question before it in that decision, but I do not agree that the Court intended to leave the question of state regulation open. See Mississippi Tax Comm’n II, supra, 421 U.S. at 613 (concluding that its decision that States have no power to regulate the importation of liquor into exclusive jurisdiction federal enclaves is also applicable to concurrent jurisdiction enclaves).

Justice SCALIA’s argument raises two separate questions. First, how do we separate those State liquor importation laws that the Twenty-first Amendment permits to override federal laws and other constitutional prohibitions from those laws it does not? Second, how do we determine whether liquor is being imported into North Dakota or into a federal island within the boundaries of the State?

The first is perhaps the more difficult question. It is clear from our decisions that the power of States over liquor transactions is not plenary,{13} even when the State is attempting to regulate liquor importation.{14} To the extent that Justice SCALIA concedes that Mississippi Tax Comm’n II is decided correctly, ante at 447-448, his assumption that concurrent jurisdiction federal enclaves are within the State for Twenty-first Amendment purposes requires him to concede that, under certain circumstances, the "transportation or importation" of liquor into a State "in violation of the laws" of the State in which the enclave is located is not prohibited by the Twenty-first Amendment. This is true because we decided that out-of-state importers and distillers could ship liquor to military bases without collecting and remitting the use tax required by Mississippi law. Thus, Justice SCALIA’s approach is to draw a line between taxes and regulations which, while consistent with some of our cases, is inconsistent with others such asHealy v. The Beer Institute, Inc., 491 U.S. 324 (1989). Seen. 13, supra.{15}

There is no need, however, to suggest a resolution as to the exact powers of a State to regulate the importation of liquor into its own territory in this case, because the second question raised by Justice SCALIA’s approach is dispositive here. I continue to agree with the Court’s position in Mississippi Tax Comm’n II that concurrent jurisdiction federal enclaves, like exclusive jurisdiction federal enclaves,{16} are not within a "State" for purposes of the Twenty-first Amendment. 421 U.S. at 613.

In addition, North Dakota appears to have ceded all of its power concerning the two federal enclaves within its boundaries, and to enjoy concurrent jurisdiction only through the grace of the United States Air Force. As noted by the plurality, see ante at 429, n. 2, the parties offer no details concerning the terms of the concurrent jurisdiction on these two bases. But the public record fills in some quite relevant data. North Dakota has long ceded by statute to the Federal Government full jurisdiction over any tract of land that may be acquired by the Government for use as a military post (retaining only the power to serve process within). See N.D.Cent.Code § 54-01-08 (1989). Thus, the State ceded its jurisdiction over the Air Force Bases long since.{17} Moreover, North Dakota defines its own jurisdiction as extending to all places within its boundaries except, where jurisdiction has been or is ceded to the United States, the State’s jurisdiction is "qualified by the terms of such cession or the laws under which such purchase or condemnation has been or may be made." See N.D.Cent.Code § 54-01-06 (1989). Since 1970, Congress has provided that the branches of the armed services could retrocede some or all of the United States’ jurisdiction over any property administered by them if exclusive jurisdiction is considered unnecessary. See 10 U.S.C. § 2683. North Dakota’s laws permit the Governor to consent to any retrocession of jurisdiction offered. See N.D.Cent.Code § 54-01-09.3 (1989).

Contrary to the plurality’s suggestion, see ante at 429, n. 2, we have never held that "concurrent jurisdiction" always means that the State and Federal Government each have plenary authority over the territory in question. To the contrary, each decision cited by the plurality either does not address the question, see, e.g., Mississippi Tax Comm’n I, 412 U.S. at 380-381, or says that the division of authority over territory under concurrent jurisdiction is determined by the terms of the cession of jurisdiction by the State. See James v. Dravo Contracting Co., 302 U.S. at 142 ("If lands are otherwise acquired [not as exclusive jurisdiction enclaves], and jurisdiction is ceded by the State to the United States, the terms of the cession, to the extent that they may lawfully be prescribed, that is, consistently with the carrying out of the purpose of the acquisition, determine the extent of the federal jurisdiction"); Surplus Trading Co. v. Cook, 281 U.S. 647, 651-652 (1930). Therefore, even were I to accept the proposition that a concurrent jurisdiction federal enclave might be a "State" for purposes of the Twenty-first Amendment, I would regard the State’s authority over the North Dakota bases as an open question for which remand for further proceedings, not reversal, is the appropriate action.

V

Because I find that North Dakota’s labeling requirement both discriminates against the Federal Government and its suppliers and obstructs the operations of the Federal Government, I cannot agree with the Court that it is valid. The operations of the Federal Government are constitutionally immune from such interference by the several States.