FILE - In this Wednesday, March 21, 2012 file photo, President Barack Obama speaks after touring Sempra's Copper Mountain Solar 1 facility in Boulder City, Nev. Obama and his Republican rival, Mitt ... more 
FILE - In this Wednesday, March 21, 2012 file photo, President Barack Obama speaks after touring Sempra's Copper Mountain Solar 1 facility in Boulder City, Nev. Obama and his Republican rival, Mitt Romney, have visited the state, competing strenuously for Nevada's six electoral votes in what has become one of the most intense swing-state contests. (AP Photo/Julie Jacobson, File) less 
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Associated Press | Photo By Julie Jacobson, File
Sat, Jul 28, 2012 10:51 AM EDT