U.S. military force in Niger weighed

New authorization to fight Islamic State to be debated.

The Senate WASHINGTON — Foreign Relations Committee is taking up a longawaited debate about authorizing military force against the Islamic State as President Trump comes under unprecedented public scrutiny for his treatment of dead soldiers’ families, following an ambush on troops helping to fight Islamic terrorists in Niger.

Senators will grill Secretary of State Rex Tillerson and Defense Secretary Jim Mattis in an open hearing on Oct. 30 about whether the administration thinks it is necessary for Congress to pass a new authorization for use of military force, or AUMF, to replace existing AUMFs that date back to the early years of the George W. Bush administration.

The hearing is seen as a precursor to a more congressionally driven legislative effort to write an AUMF that can draw enough Republican and Democratic support to pass.

Lawmakers have wrangled for years over whether or how to replace the existing 2001 AUMF, which authorized operations against al-Qaida, the Taliban, and affiliated groups in the wake of the Sept. 11 attacks, and the 2002 AUMF, which allowed for operations in Iraq, with a new AUMF more focused on present-day and future threats — particularly the Islamic State.

Many members of Congress have charged that the existing AUMFs do not provide a firm legal basis for current operations, a view that both the Obama and Trump administrations have argued against.