A Howey/DePauw poll is the first since Richard Mourdock said in a debate that if pregnancy resulted from rape, it was what God intended.
Campaigns say they conduct internal polling for more reliable information, but pollsters say they are more about encouraging the base.
A poll by a Republican and Democratic pollster shows Richard Mourdock with a large lead over incumbent Senator Richard Lugar.
Governor Daniels ranks third in the nation in popularity.
An online poll on Facebook and Sprite's website led to the award.