A prediction from a smart and helpful reader:

One thing that strikes me about this is that the GOP no longer has 41 votes. They have 42.
Bayh obviously has his eye on something beyond spending time with his family. Be it a presidential run or a gubernatorial run, there is no way he’ll vote for the Obamacare measures Reid and Pelosi have been pushing.
In fact, he’s very likely to swing more rightward in his votes until the day his seat is open.
We live in interesting times. More often than not, that’s a curse. Right now it is a blessing.

I think he’s right, but we’ll have to wait and see how Bayh votes from here on out . . .