They got a breakthrough Thursday when four of the bill's most consistent critics said they would not stand in its way. California Democrats Lynn Woolsey, Diane Watson, Barbara Lee and Maxine Waters said they would help round up support for the bill despite their intention to personally vote against it because it would not end the war immediately.

"Despite my steadfast opposition, I have told the speaker that I will work with her to obtain the needed votes to pass the supplemental, but that in the end I must vote my conscience," said Rep. Diane Watson, D-Calif.

The Iraq deadline created an unusual dynamic in the sharply partisan Congress. Bush loyalists teamed up with some anti-war liberals in opposing the measure. Conservatives said a firm deadline for the war would tie the hands of military commanders and embolden insurgents after the U.S. left Iraq, whereas many liberals said the bill would continue to bankroll an immoral war for more than a year.

"If you want peace, stop funding this war," said Rep. Dennis Kucinich, D-Ohio.

"Approval of it means we vote to abandon Iraq at an arbitrary time no matter the situation, said Republican Rep. Ted Poe. It's also "loaded with squealing pork that has nothing to do with our troops or the war," added Poe, R-Texas, referring to the billions of dollars added to the bill to fund domestic programs and attract votes.

But members said Pelosi was able to convince liberal members of her caucus that the legislation was their best shot at challenging Bush on the war even if it fails to become law.