Washington, D.C. ? A $23 billion payout to save thousands of educators’ jobs faltered Thursday — perhaps for good — to election-year jitters among moderate Democrats over deficit spending and only lukewarm support from the White House.

The proposal’s chief advocate in the House abruptly canceled a committee meeting to put the money in a war spending bill. Its lead sponsor in the Senate gave up trying to do it, acknowledging he lacked the necessary votes.

The developments jeopardized what progressives in Congress and some members of the Obama administration had described as a life raft for 100,000 to 300,000 teachers and other school personnel whose billions of dollars in stimulus salary subsidies run out this fall.