Hat tip to Instapundit for this report stating that Congressional opponents of the war, after visiting Iraq, are supportive of the effort:

But so far, no members of Congress are coming back saying that the US should pull out of Iraq. Many going in with doubts return to vote with the White House. After a two-day visit in October, a delegation of GOP moderates voted to support the president on a key vote to send $20 billion to Iraq as a grant, rather than a loan. “One [US] general told us that money is ammunition. US troops will be a lot more secure when Iraqis have jobs,” said Rep. Amo Houghton (R ) of New York, one of six House Republicans to vote in 2002 against the use of force in Iraq.