Richard Lugar won't campaign for Republican Richard Mourdock
During the primary, in which Mourdock won 61 percent of the vote, Mourdock and his supporters criticized Lugar for being too willing to work with President Barack Obama and other Democrats.
Lugar said Sunday a main reason for his defeat was that "a large portion of the Republican Party of Indiana believed, apparently, in the idea of individualism as opposed to community, a sense of compromise, or a sense of talking across the aisle."
http://www.usatoday.com/news/politics/story/2012-05-27/lugar-indiana-senate-mourdock/55237960/1