by ANNE FLAHERTYAssociated Press Writer The Senate on Wednesday rejected legislation that would cut off money for combat operations in Iraq after March 31, 2008. The vote was a loss for Sen. Russell Feingold, D-Wis., and other Democrats who want to end the war. But the effort picked up support from members, including presidential hopefuls previously reluctant to limit war fundingan indication of the war's unpopularity among voters. The proposal lost 29-67 on a procedural vote, falling 41 votes short of the necessary votes to advance. Sen. Hillary Rodham Clinton, a Democratic presidential front-runner, previously opposed setting a deadline on the war. But she said she agreed to back the measure "because we, as a united party, must work together with clarity of purpose and mission to begin bringing our troops home and end this war." Sen. Barack Obama, another leading 2008 prospect, said he would prefer a plan that offers more flexibility but wanted "to send a strong statement to the Iraqi government, the president and my Republican colleagues that it's long past time to change course." The proposal had been expected to fall short of the 60 votes needed to advance under Senate rules, but was intended to gauge the tolerance of members on anti-war legislation. Senate Majority Leader Harry Reid staged a series of war votes Wednesday to inform negotiations with the House on a war spending bill. "We stand united.... in our belief that troops are emeshed in an intractable civil war," said Reid, D-Nev.