As I write this, Pelosi is giving a speech in support of the bill. She's so mean and partisan that I worry it won't pass telling us it's awesome and that they've all come together, blah blah blah.

WaPo:

The fate of an emergency economic rescue plan was uncertain this morning as the House prepared for a climactic midday vote, but both Democratic and Republican leaders said they are optimistic that they can marshal more support for the $700 billion bailout than they did last Monday. 

...

"We're not going to take a bill to the floor that doesn't have the votes," Pelosi said. "I'm optimistic that we will take a bill to the floor."

They have just begun voting for 15 minutes. Liveblogging the vote in comments.

Follow it live on CSPAN here.

UPDATE

Vote succeeds, 263-171. Majority of Goopers oppose.