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.