White the main thrust of their initial proposal was unchanged, lawmakers insisting on greater congressional supervision over the $700 billion, measures to protect taxpayers and steps to crack down on so-called "golden parachutes" that go to corporate executives whose companies fail.

Earlier in the week, the legislation was altered to expand the federal insurance program for individual bank deposits, and the Securities and Exchange Commission took steps to ease the impact of the questionable mortgage-backed securities on financial institutions.

In the moments before the vote, Rep. Barney Frank, D-Mass., chairman of the House Financial Services Committee, pledged "serious surgery" next year to address the underlying causes of the crisis.

If anything, the economic news added to the sense of urgency.

The Labor Department said initial claims for jobless benefits had increased last week to the highest level since the gloomy days after the 2001 terror attacks. The news of the payroll cuts came on top of Thursday's Commerce Department report that factory orders in August plunged by 4 percent.

Typifying arguments the problem no longer is just a Wall Street issue but also one for Main Street, lawmakers from California and Florida said their state governments were beginning to experience trouble borrowing funds for their own operations.

Pelosi said, "We must win it for Mr. and Mrs. Jones on Main Street."

One month before Election Day, the drama unfolded in an intensely political atmosphere.

Members of the Congressional Black Caucus credited Obama with changing their minds.

Reps. Elijah Cummings and Donna Edwards, both Maryland Democrats, were among them. They said Obama had pledged if he wins the White House that he would help homeowners facing foreclosure on their mortgages. He also pledged to support changes in the bankruptcy law to make it less burdensome on consumers.

Obama's rival, Republican Sen. McCain, announced a brief suspension in his campaign more than a week ago to try and help solve the financial crisis.

Republican Rep. Sue Myrick of North Carolina, who switched her vote to favor the measure, said, "I may lose this race over this vote, but that's OK with me. This is the right vote for the country."

The vote on Monday had staggered the congressional leadership and contributed to the largest one-day stock market drop in history, 778 points as measured by the Dow Jones Industrials.

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Associated Press writers Jim Abrams, Charles Babington, Alan Fram, Suzanne Gamboa, Kimberly Hefling, Andrew Miga, Andrew Taylor, and Erica Werner contributed to this story.