WASHINGTON -- Majority Democrats and the Bush White House finalized a deal to spend $14 billion on emergency loans for struggling U.S. automakers, congressional officials said -- despite fierce opposition from some Republicans. On Wednesday, the White House revealed elements of the $14 billion "bridge financing," which would give until March 31 for the Big Three automakers to have a plan to make the firms "viable" or "the government gets its money back." GOP Senators Jeopardize Auto Rescue Bill - FOXNews.com Transition Tracker Congressional Republicans, left out of negotiations on the package, are expressing grave reservations and may seek to block it. Sen. David Vitter, R-La., promised to filibuster the measure, which could delay a final vote for days. He said the package has an "ass-backwards" approach to curing what ails the U.S. auto industry.