** FILE ** U.S. Sen. Harry Reid, Nevada Democrat, speaks at the National Clean Energy Summit at the Bellagio in Las Vegas on Tuesday, Aug. 7, 2012. (AP Photo/Las Vegas Review-Journal, Jessica Ebelhar)

Photo by: Jessica Ebelhar

** FILE ** U.S. Sen. Harry Reid, Nevada Democrat, speaks at the National Clean Energy Summit at the Bellagio in Las Vegas on Tuesday, Aug. 7, 2012. (AP Photo/Las Vegas Review-Journal, Jessica Ebelhar)