FILE - Sen. Richard Lugar of Indiana, is shown in this September 

FILE - Sen. Richard Lugar of Indiana, is shown in this September 1993 file photo. Among those who supported both Sonia Sotomayor and Elena Kagan  was Sen. Richard Lugar, a six-term Indiana Republican who lost his seat in 2012 in a primary. The NRA exacted its revenge in that race, spending $200,000 against him in order to help GOP challenger Richard Mourdock.   (AP Photo/File)
Associated Press
FILE - Sen. Richard Lugar of Indiana, is shown in this September 1993 file photo. Among those who supported both Sonia Sotomayor and Elena Kagan was Sen. Richard Lugar, a six-term Indiana Republican who lost his seat in 2012 in a primary. The NRA exacted its revenge in that race, spending $200,000 against him in order to help GOP challenger Richard Mourdock. (AP Photo/File)
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