FILE - This Oct. 7, 2010 file photo shows Sen. John Ensign, R-Nev. taking part in a hearing of the Senate Commerce Committee on Capitol Hill in Washington. Ensign says he wants another six years in ... more 
FILE - This Oct. 7, 2010 file photo shows Sen. John Ensign, R-Nev. taking part in a hearing of the Senate Commerce Committee on Capitol Hill in Washington. Ensign says he wants another six years in the U.S. Senate. But he isn't the only one gearing up for a tough election tussle in 2012. Nevada politicos are studying the electoral landscape to prepare for their next fight. less 
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Associated Press | Photo By Harry Hamburg, File
Wed, Nov 24, 2010 6:15 PM EST