Mitt Romney is far ahead of Barack Obama in Indiana, a state Obama won in 2008. The last poll of the Hoosier State showed Romney up 13 points. But down the ballot in the U.S. Senate race, the Republican candidate Richard Mourdock, the state treasurer, isn't as far ahead. That may explain why Romney is appearing in a new Mourdock television ad.

"This fall, I'm supporting Richard Mourdock for Senate," says Romney. "As state treasurer, Richard worked with Governor [Mitch] Daniels to balance the budget and make government more accountable." Watch the ad below:

According to Real Clear Politics, Mourdock's race against Democratic congressman Joe Donnelly is a toss up. A Rasmussen poll showed Mourdock ahead of Donnelly by 5 points, another poll had Donnelly up by 2 points.

Mourdock trounced six-term incumbent Dick Lugar in May's Republican primary. Lugar has endorsed Mourdock has not campaigned on his fellow Republican's behalf.

Next Page