Quote from GTG:
I think this bail-out is playing out like a game of prisoner's dilemma in congress. I think enough of the members of congress know what is at stake here to pass the bill, but if the bill passes, anyone who votes for this unpopular "bail-out" is going to get attacked by those who didn't vote for it. The public will be on side against the bail-out, because without a catastrophe, the public will never know what was at stake.
So you have a situation here, where most of congress wants the bill passed, but no one actually wants to be counted among those who voted for it. If the bill doesn't pass, and the equities markets drop 20% in a few days, and there are lines around the block at your local bank, while at the same time factories are laying off blue-collar workers because they can't get credit to finance the next month's payroll, then sure the public will be screaming mad at congress for not "doing something". But, all of the politicians will be kind of screwed equally in that case because in the wake of such pandemonium all politicians will be in trouble. The public will be in too much of a state of panic to make the finer distinctions between who voted for and against the bail-out package. They will just throw everyone out of office in the next election.
This is why Nanci Pelosi wants to make sure that significant numbers of Republicans will vote for the bill before she is willing to bring it to a vote, and also why she needs the president to make a speech showing his support tonight too. She doesn't want the Dems to be alone in taking the blame for "bailing out wallstreet". The Democrats and Republicans both also need to attach all kinds of face-saving provisions to the bill like limiting executive pay for the companies getting bailed out, so that they can face their angry constituents by saying "yeah the bill sucks, but I forced those greedy bankers to take a pay-cut at least!".