By DAVID B. RIVKIN JR. and LEE A. CASEY, in the Wall Street Journal

Dec. 2, 2015 6:51 p.m. ET

Two days after terrorists rampaged in Paris, the Obama administration announced that it had transferred five prisoners—including a former Osama bin Laden bodyguard—from the U.S. prison facility at Guantanamo Bay, Cuba, to the United Arab Emirates.

In the past several days, the White House has signaled that a more significant step is coming soon: the complete shutdown of the facility and the transfer of the remaining detainees—there are 107 at the moment—to sites on the U.S. mainland. Obama-administration surrogates say the president will effect the change by using his favorite tool, an executive order. But this would be utterly illegal, since Congress has specifically prohibited the transfer of Guantanamo detainees to U.S. soil.

Although the president’s war powers are broad and formidable, so are those of Congress. In particular, the Constitution specifically vests the legislative branch with the powers to “declare War”; to “raise and support Armies”; to “make Rules concerning Captures on Land and Water”; to “make Rules for the Government and Regulation of the land and naval Forces”; and to appropriate funds for all of these purposes. Read more »

A court rules that the House can sue the administration for its end-run on spending.

By DAVID B. RIVKIN JR. And ELIZABETH PRICE FOLEY

Sept. 10, 2015 7:46 p.m. ET

When the House of Representatives filed a lawsuit last year contesting President Obama’s implementation of ObamaCare, critics variously labeled it as “ridiculous,” “frivolous” and certain to be dismissed. Federal District Judge Rosemary Collyer apparently doesn’t agree. On Wednesday she ruled against the Obama administration, concluding that the House has standing to assert an injury to its institutional power, and that its lawsuit doesn’t involve—as the administration had asserted—a “political question” incapable of judicial resolution.

The House lawsuit involves two core allegations. First, the House contends that the executive branch has spent billions of dollars on ObamaCare’s “cost-sharing” subsidy, even though Congress hasn’t appropriated money for it. The House says the administration violated Article I, Section nine of the Constitution, which declares: “No Money shall be drawn from the Treasury, but in Consequence of Appropriations Made by Law.”

Second, the House asserts that the administration has failed to faithfully execute ObamaCare’s employer mandate by issuing regulations lowering the percentage of employees who must be offered insurance and delaying the mandate’s effective date for two years. Read more »

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By DAVID B. RIVKIN JR. and LEE A. CASEY

The Iranian nuclear agreement announced on July 14 is unconstitutional, violates international law and features commitments that President Obama could not lawfully make. However, because of the way the deal was pushed through, the states may be able to derail it by enacting their own Iran sanctions legislation.

President Obama executed the nuclear deal as an executive agreement, not as a treaty. While presidents have used executive agreements to arrange less-important or temporary matters, significant international obligations have always been established through treaties, which require Senate consent by a two-thirds majority.

The Constitution’s division of the treaty-making power between the president and Senate ensured that all major U.S. international undertakings enjoyed broad domestic support. It also enabled the states to make their voices heard through senators when considering treaties—which are constitutionally the “supreme law of the land” and pre-empt state laws.

The Obama administration had help in its end-run around the Constitution. Instead of insisting on compliance with the Senate’s treaty-making prerogatives, Congress enacted the Iran Nuclear Agreement Act of 2015. Known as Corker-Cardin, it surrenders on the constitutional requirement that the president obtain a Senate supermajority to go forward with a major international agreement. Instead, the act effectively requires a veto-proof majority in both houses of Congress to block elements of the Iran deal related to U.S. sanctions relief. The act doesn’t require congressional approval for the agreement as a whole.

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By David B. Rivkin, Jr., and Lee A. Casey; July 21, 2015, in The National Interest

The best approach to Iran in the wake of President Obama’s deal is to recognize the complex nature of the problem, and the absolute need for a well-considered and comprehensive approach. The agreement cannot and should not be simply repudiated on the next president’s first day in office, as some Republican presidential contenders have suggested. The agreement is terrible, but once concluded, the national interest requires that it be undone only with care, patience, and masterful diplomacy—an approach championed by Gov. Jeb Bush and Senator Lindsey Graham. Indeed, to suggest otherwise, is to fail to appreciate the full extent of the damage done by the deal and the difficult foreign-policy legacy President Obama is leaving for his successor.

First and foremost, simply abrogating the deal—which already has been enshrined in a Chapter VII UN Security Council Resolution binding on the United States and all members of the United Nations—would actually put the United States in violation of its international obligations and will hand tremendous strategic benefits to Tehran. This may be inevitable, since Russia and China will certainly take advantage of any American action against Iran to score diplomatic and strategic points against us. But, we do not have to make it easy for them, and we should not.

In addition, whatever action the new president takes on January 20, 2017, Iran will remain free of the vast majority of the sanctions that brought it to the bargaining table in the first place. While the next president will be able to vitiate promptly President Obama’s waivers of the existing statutory sanctions—some of which are certain to go beyond his lawful waiver authority—thereby making the existing domestic statutory sanctions available, it would still make sense to consult with Congress on whether the sanctions regime needs adjustment in light of new circumstances.

Although President Obama has ignored Congress, or affirmatively sought to curtail its constitutional prerogatives, the next President should work with Congress and must seek to build a bipartisan consensus on how to meet the Iranian challenge. As Supreme Court Justice Robert Jackson wrote in the landmark case of Youngstown Sheet & Tube Co. v. Sawyer (1952), a president acts at the height of his constitutional authority when working with, rather than against, Congress.

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