[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/POLITICS/08/19/health.care/art.charles.grassley.gi.jpg caption="Democrats say Republicans, particularly Iowa Sen. Charles Grassley, aren't serious about striking a deal."]
WASHINGTON (CNN) - The Obama administration is looking hard at pushing through a health care reform bill without Republican backing, top Democrats close to the White House have told CNN.
The Democratic majority in the Senate has been stymied in the health care debate by Republicans and conservative Democrats, leaving them short of the 60-vote "filibuster-proof" margin needed to pass the bill.
Democratic success could depend on an obscure tactic called reconciliation, a type of budget maneuver that requires only a simple majority - 51 votes - to pass.
Going it alone could be risky for Democrats, not because they couldn't raise the votes, but because Republicans could cast it as a power play, accusing them of failing to win bipartisan support. But it's a fight Democrats might be willing to enter.
"If we have to push it through this way, no one is going to remember how messy it was," a top White House adviser told CNN. "At the end of the day, they'll remember we got health care reform done. A win is a win."
White House officials are beginning to lay the groundwork for such a move, telling CNN that they'll have to take drastic measures if there's no movement.
Sources from the administration and the Democratic side of Capitol Hill have told CNN that they're becoming increasingly convinced that Republicans - particularly Iowa Sen. Charles Grassley - involved in the negotiating process aren't serious about striking a deal.