White House Outlines Proposal for War Authorization Against ISIS

White House is considering prohibiting "enduring" ground troops in ISIS fight.

The meeting came hours after the White House announced U.S. aid worker Kayla Mueller died while being held hostage by ISIS.

The White House intends to present its proposal this week – as early, perhaps, as Wednesday. But the most robust Congressional war debate in more than a decade is likely to linger for weeks or months.

The opposition from the right and left is intense, and it raises the question of how this divided Congress will ever get behind a proposal. Several Democrats voiced concerns about the phrase “enduring offensive ground operations,” saying the phrase is vague and open-ended.

“There's really no precedent built up around, you know, the terminology that the administration is going to be using, thus leaving it up to the next president to decide for him or herself,” Murphy added.

“That’s a term that doesn’t have precedence in prior foreign policy and so it’s going to have to be defined, there’s going to have to be legislative history and discussion,” Sen. Angus King, I-Maine, said. “It’s going to take some discussion to determine whether it’s the right term and I think there’s going to be dispute and discussion around here among various people on both sides of the aisle as to what the limitation should be, if any. I think there’s some people who feel there should not be any limitations.”

“It has never happened, it has never happened, it has never happened and never will as long as I'm able to breathe,” McCain said, fuming at the proposal he believes would place too strict of limits on the force the United States could use.

“It means it will apply to this president during the remainder of his term and to the succeeding president for one year,” Durbin said. “Whoever is elected president after Obama has to start thinking immediately about the renewal of the AUMF and discussing it with Congress.”

ABC News’ Stephanie Ebbs contributed to this report.