House Democrats pushed through a $50 billion bill for the Iraq war Wednesday night that would require President George W. Bush to start bringing troops home in coming weeks with a goal of ending combat by December 2008. The legislation, passed 218-203, was largely a symbolic jab at Bush, who already has begun reducing force levels but opposes a congressionally mandated timetable on the war. And while the measure was unlikely to pass in the Senate - let alone overcome a presidential veto - Democrats said they wanted voters to know they weren't giving up. "The fact is, we can no longer sustain the military deployment in Iraq," said House Speaker Nancy Pelosi, a Democrat. "Staying there in the manner that we are there is no longer an option." The White House pledged to veto the bill, and Republicans said they would back the president.