FILE - This Dec. 10, 2012 file photo, Sen. Joseph Lieberman, I-Conn. 

FILE - This Dec. 10, 2012 file photo, Sen. Joseph Lieberman, I-Conn. gestures during a news conference at the state capitol in Hartford, Conn. Retiring Sen. Joe Lieberman in his final Senate floor speech is urging Congress to put partisan rancor aside and reach across party lines to break Washington's gridlock. (AP Photo/Jessica Hill, File)
Associated Press
FILE - This Dec. 10, 2012 file photo, Sen. Joseph Lieberman, I-Conn. gestures during a news conference at the state capitol in Hartford, Conn. Retiring Sen. Joe Lieberman in his final Senate floor speech is urging Congress to put partisan rancor aside and reach across party lines to break Washington's gridlock. (AP Photo/Jessica Hill, File)
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