WASHINGTON (AP) — One day after sending Congress legislation backing the use of military force against Islamic State militants, President Barack Obama is still searching for his first outright supporter for the measure.

Republicans and Democrats, House and Senate, senior lawmakers and newcomers to Congress, lawmakers across the congressional spectrum all found something in the proposal to oppose on Wednesday. Or else they said nothing to tip their hand.

Republicans control a majority in both the House and Senate, and made clear they will insist on changes. They focused, in part, on Obama's call to rule out enduring offensive combat operations, saying it wasn't strong enough to ensure victory.

Democrats expressed concerns about approving an ambiguously worded measure that could lead to yet another ground war like the ones in Afghanistan and Iraq.

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