Ramesh Ponnuru: Thinks that Blanche Lincoln's vote against the Nelson amendment, a strict anti-abortion measure, is very risky, since Mark Pryor voted for it.

On the Nelson amendment, see here.

Power Line adds: 

Senator Nelson has been pretty clear that he won't vote for the Dems' bill without the kind of language he unsuccessfully attempted to insert. Without Nelson and Lieberman, Harry Reid will have to hold onto Blanche Lincoln and win over both of the Maine Senators.
This won't be easy, particularly since Senator Snowe, probably the more woo-able of the two, said today that the Dems are taking their legislation in the wrong direction.

I've thought all along that Blanche would find some justification to vote Reid's way.