AUMF

Recent moves and countermoves by the U.S. and Iran in the Persian Gulf over the past few months have increased speculation about the prospect of war in the region. Some members of Congress, including a few Republicans, have stated that the president cannot use military force against the Islamic Republic without the approval of the legislature.

On this date in 1955, President Dwight Eisenhower signed a congressional joint resolution authorizing military force to protect Formosa, as Taiwan was then called by the U.S. government, and surrounding islands. It’s one of the most interesting force authorizations in American history: It reflected Eisenhower’s complicated ambivalence toward constitutional powers, it was open-ended, it contemplated the possible use of nuclear weapons, and it was never actually invoked.

Nearly 17 years after the 9/11 attacks, a bipartisan coalition of senators has put forward legislation that promises to overhaul the legal framework for America’s worldwide campaign against terrorism. Proponents of this measure argue the existing authorization for military force—an AUMF in wonk-speak—passed back in September 2001 has become woefully outdated. The failure to modernize it, supporters say, represents a dereliction of duty by Congress.

Last Wednesday, the Senate Foreign Relations Committee heard testimony about the Corker-Kaine AUMF proposal, S.J. Res. 59, from former State Department legal adviser John B. Bellinger and Georgetown law professor Rita M. Siemion. Sen.