In fresh violence a suicide truck bomber blew up near a Baghdad college yesterday, killing 18 people and wounding 40, police said.

Seizing the initiative from a deadlocked Senate, the House is expected to vote on Friday on Bush's decision to send another 21,500 troops to fight the unpopular war after each of its 435 members is given the chance to speak for five minutes.

It does not force the president to do anything, but supporters say they hope a strong statement against his policy will make Bush reconsider. The simple, two-sentence resolution also pledges support for US troops.

"Congress and the American people will continue to support and protect the members of the United States Armed Forces who are serving or who have served bravely and honourably in Iraq," the resolution says, adding:

"Congress disapproves of the decision of President George W. Bush announced on January 10, 2007, to deploy more than 20,000 additional United States combat troops to Iraq."

Bush indicated he was not planning to watch the House debate, telling an interviewer on C-Span television: "I've got a full day tomorrow" and "I already know what the debate is."

"I hear a lot of opinions. And a lot of people don't believe we can succeed in Iraq and, therefore, I presume, want to get out. That would be a disastrous course as far as I'm concerned," Bush said.

House Republicans have conceded they are likely to lose the vote on the measure and expect some of their members to defect and support it. Trying to undermine the proposal, they charged on Monday that it was the first step toward choking off spending for soldiers, something anathema to many lawmakers.

"After their resolution passes, Democrats will begin moving legislation to systematically cut off funding for America's troops," declared a statement from House Republican Leader John Boehner's office.

Democratic leaders deny they will cut funding to troops in harm's way. They have pledged that in the coming weeks they will examine some Democrats' proposals to cap troop levels or place restrictions on funding for the war.

Polls show most Americans oppose Bush's troop boost plan. Discontent with the Iraq war played a major part in the Democrats' takeover of Congress in November elections.

House Republican leaders wanted a vote on a substitute proposal that would prevent a cutoff of funds for US troops. House Majority Leader Steny Hoyer, a Maryland Democrat, refused, saying he wanted to avoid the kind of fight that engulfed the Senate last week over whether to debate troop funding along with the troop increase.

Amid Senate procedural wrangling, the issue was shelved.

The House does not have the same rules allowing a minority to stall debate, and Republicans seeking a vote on war funding may have to wait until Democrats allow such a measure. Hoyer says the Republicans will get that chance in 30 to 45 days.

Meanwhile, a suicide truck bomber blew up near a Baghdad college yesterday, killing 18 people and wounding 40, police said.

Police said the small truck exploded in a parking lot between the College of Economic Sciences, a private university in western Baghdad's residential Iskan district, and a large foodstuff warehouse belonging to the Trade Ministry.

The blast destroyed one house and severely damaged others, police said.

The explosion followed multiple bombings at two Baghdad markets on Monday that killed at least 80 people and wounded scores.

US-backed Iraqi forces have launched a crackdown in the city to quell sectarian bloodletting between majority Shias and minority Sunnis. The move is seen as a last chance to avert all-out civil war, but it has made little impact so far on the unrelenting violence that has killed tens of thousands.