The US House of Representatives is set to vote on a resolution later on Friday opposing President Bush's troop buildup for Iraq.
The short, non-binding resolution disapproves of the president's decision to deploy thousands of additional US combat troops to Iraq, while expressing continued support for the American forces now serving there.
The vote will end four days of often heated debate in the Democratic-controlled chamber and is expected to pass by a wide margin, with most Democratic lawmakers and a number of Republicans voting for it.
House Speaker Nancy Pelosi of California told the House that today they are setting the stage for a new direction in Iraq that will bring American troops home safely and soon. She said the president's plan repeats mistakes of the past and has little chance of success.
If passed, it will be the first time the US Congress has voted against Bush's Iraq war policy since the March 2003 invasion. Passage could pave the way for binding legislation on the conflict that has killed more than 3,100 US troops.
The votes comes before a rare Saturday vote in the Senate on the House resolution scheduled by Senate Majority Leader Harry Reid of Nevada. Opposition Republicans blocked a vote on a similar non-binding resolution last week.
Pennsylvania Democrat John Murtha, a major critic of Mr. Bush's handling of the war, is working on a spending bill for U.S. troops in Iraq that forces the military to meet some strict requirements, such as ensuring troops receive proper combat training and equipment before they are deployed. Murtha also wants soldiers to spend at least a year at home between combat deployments. In addition, he wants to end a program forcing soldiers to extend their enlisted periods.