[Clintonfatigued]

Joe Donnelly is only running because he barely won in 2010 and redistricting moved the district east, dooming his reelection prospects. He might not even campaign actively if Lugar wins the primary.

[AuH2ORepublican]

I know why he's running for the Senate instead of for reelection (the IN-02 went from being less Republican than IN as a whole to more Republican than IN as a whole), but I disagree that he won't campaign actively if Lugar gets renominated. While I don't doubt that Donnelly thinks that Lugar would be nearly impossible to beat, but that he'd have a chance against Mourdock, that doesn't mean that Donnelly would forgo the opportunity to campaign strongly statewide because (i) one never knows and (ii) it would help him for a future statewide run. (And, for the record, I don't think that Donnelly’s odds against Mourdock would be all that hot, either.)