Republican state Treasurer Richard Mourdock has a slim lead over Democratic Rep. Joe Donnelly in the Indiana Senate race, according the new poll from Rasmussen, with many voters undecided.
Mourdock has 42 percent support, against Donnelly’s 40 percent. The survey of 400 likely voters was conducted July 31 and August 1, and has 5 percent margin of error.
In the previous Rasmussen poll, back in late May, the two were tied at 42 percent each.