Sen. Lamar Alexander, R-Tenn., number three in the Senate Republican leadership, second from right, talks about his decision to step down from his post in January, Tuesday, Sept. 20, 2011, during a ... more 
Sen. Lamar Alexander, R-Tenn., number three in the Senate Republican leadership, second from right, talks about his decision to step down from his post in January, Tuesday, Sept. 20, 2011, during a news conference on Capitol Hill in Washington. From left are, Sen. John Barrasso, R-Wyo., Sen. John Cornyn, R-Texas, Alexander, and Senate Minority Leader Mitch McConnell of Ky. (AP Photo/J. Scott Applewhite) less 
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Associated Press | Photo By J. Scott Applewhite
Tue, Sep 20, 2011 4:30 PM EDT