UPDATED 8 a.m. WASHINGTON, D.C. - President Bush has dropped his opposition to legislation that aims to calm the chaotic housing market despite his opposition to a $3.9 billion provision, the White House said Wednesday.

Under the bill, the government would help struggling homeowners get new, cheaper loans and would be allowed to offer troubled mortgage giants Fannie Mae and Freddie Mac a cash infusion.

The House was expected to vote on the bill Wednesday, and it could become law as early as this week.

The Bush administration and lawmakers in both parties teamed to negotiate the measure, which pairs Democrats' top priorities - federal help for homeowners facing foreclosure and $3.9 billion for neighborhoods hit hardest by the housing crisis - with Republicans' goal of reining in mortgage giants Fannie Mae and Freddie Mac while reassuring financial markets of their stability.

Bush had objected to the $3.9 billion provision in the measure, saying that it was aimed at helping bankers and lenders, not homeowners who are in trouble.

White House press secretary Dana Perino announced Bush's switch in a telephone conference call with reporters. "We believe this is not the time for a prolonged veto fight but we are confident the president would prevail in one," she said.

It hands the Treasury Department power to extend the government-sponsored mortgage companies an unlimited line of credit and buy an unspecified amount of their stock, if necessary, to prop up Fannie Mae and Freddie Mac, two companies chartered by Congress. The two companies back or own $5 trillion in U.S. mortgages - nearly half the nation's total.