Congress has apparantly made a deal to bail out Wall Street. Warren Buffett thinks they had no choice.

Billionaire Warren Buffett told congressional negotiators that if they can’t agree on a proposed financial bailout, the nation will face “its biggest financial meltdown in American history,” two sources familiar with the talks said.

Word of Buffett’s omen came hours before Democrats posted a draft of the bailout bill online and House Speaker Nancy Pelosi said Sunday afternoon she hoped the chamber would vote Monday.

Buffett, whom Forbes magazine has placed at No. 2 on its 2008 list of richest Americans, was one of several business experts whose opinions were sought, Sen. Kent Conrad, D-North Dakota, told reporters Saturday.

Buffett is chairman and CEO of Berkshire Hathaway Inc. His wealth is estimated at $50 billion. Buffett was consulted by telephone, Conrad said.

The whole thing stinks, but they really didn’t have much of a choice.

Update: The House has rejected the bailout deal. It seems some are happy to play chicken with our financial system.