This July 2, 2013 photo shows U.S. Sen. Mike Enzi, R-Wyo., talks to constituent John Marquardt at a senior center in Pine Bluffs, Wyo. Enzi, on the left, hasn't said yet whether he will seek ... more 
This July 2, 2013 photo shows U.S. Sen. Mike Enzi, R-Wyo., talks to constituent John Marquardt at a senior center in Pine Bluffs, Wyo. Enzi, on the left, hasn't said yet whether he will seek re-election to the Senate while Liz Cheney, daughter of former Vice President Dick Cheney, has said she's prepared to challenge him in the 2014 Republican primary. (AP Photo/Ben Neary) less 
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Associated Press | Photo By Ben Neary
Tue, Jul 16, 2013 7:45 PM EDT