Still, Nate Silver steps up. He doesn't blast Sirota, but he does refute him, and the knee-jerk anti-Bailout mania that seems to be sweeping the country...
The reason, of course, that Coburn and the other 18 senators changed their stance on the bailout is not because of any underlying change in philosophy but because of political opportunism. The Obama administration has now inherited the burden of the bailout package from the Bush administration; as such, it is easier for Republicans to oppose it. Likewise, it is harder for Democrats like Jeff Merkely and the Udall Cousins, who railed against the bailout on the campaign trail, to vote to oppose it.
The bailout, undoubtedly, is highly unpopular. Getting to run a commercial that accuses your opponent of having voted for "a $700 billion giveaway to Wall Street" is the sort of stuff that can win you an election.
But does the fact that the optics of the bailout are poor mean that it is poor policy? Does it mean, moreover, that opposing the bailout is the right "progressive" policy stance?
On the contrary, the fact that the Republican and Democratic positions on the bailout appear to be so fluid would seem to indicate that it not an issue particularly well described by traditional ideological frameworks like liberal versus conservative. Either the bailout is a necessary evil to get the economy moving again -- a goal that benefits progressives and conservatives alike -- or it isn't. This is largely an empirical question rather than an ideological one.