From Ezra Klein (bold emphasis mine):

Parochialism and power don’t seem to be protecting Ben Nelson’s that much, as a new poll out of Nebraska shows him at 30 percent in a hypothetical match-up against the sitting Republican governor, Dave Heineman.

A solid 64 percent of Nebraskans disapprove of health-care reform, and the situation was worsened by Nelson’s polarizing last-minute deal to protect Nebraska from Medicaid costs: Only 17 percent of Nebraskans approve of the free money Nebraska got. Whether this will convince vulnerable Democrats against demanding bribes to support controversial legislation or whether it’ll convince vulnerable Democrats not to support the legislation altogether remains to be seen.

Nelson isn’t up for re-election until 2012, but as I’ve said elsewhere, Democrats in conservative districts are going to be in big trouble in 2010. As the 17% number shows, it’s not so much that they are mad about the bill itself (although many are) but that they are mad about the process and the way this was a partisan vote. Liberals may not believe it to be fair, but the majority will wear the albatross for that anger.