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Posted: 5/18/2013 3:51:56 AM EST
FILE - In this June 26, 2010 file photo shows former South Dakota U.S. Rep. Stephanie Herseth-Sandlin in Sioux Falls, S.D. Herseth-Sandlin and Rep. John Barrow in Georgia, two top-tier Democratic prospects, recently bypassed running for Senate seats in Georgia and South Dakota, decisions that highlighted both divisions within the party and its challenge of finding candidates whose ideologies line up with voters in Republican-leaning states. (AP Photo/Argus Leader, Devin Wagner, File)
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Posted: 5/18/2013 3:51:56 AM EST
FILE - In this Nov. 6, 2012 file photo, Rep. John Barrow, D-Ga., stands with supporters as he waits to do a television interview at an election-night party in Augusta, Ga. Barrow and former Rep. Stephanie Herseth-Sandlin in South Dakota, two top-tier Democratic prospects, recently bypassed running for Senate seats in Georgia and South Dakota, decisions that highlighted both divisions within the party and its challenge of finding candidates whose ideologies line up with voters in Republican-leaning states. (AP Photo/John Bazemore, File)
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Posted: 5/17/2013 2:45:15 PM EST
Illinois Sen. William Haine, D-Alton, argues medical marijuana legislation while on the Senate floor during session at the Illinois State Capitol Friday, May 17, 2013, in Springfield Ill. (AP Photo/Seth Perlman)
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Posted: 5/17/2013 2:45:15 PM EST
Illinois Senate President John Cullerton, D-Chicago, listens to lawmakers debate medical marijuana legislation on the Senate floor during session at the Illinois State Capitol Friday, May 17, 2013, in Springfield Ill. (AP Photo/Seth Perlman)
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Posted: 5/17/2013 2:45:15 PM EST
Illinois Sen. Dave Syverson, R-Rockford, argues medical marijuana legislation while on the Senate floor during session at the Illinois State Capitol Friday, May 17, 2013, in Springfield Ill. (AP Photo/Seth Perlman)
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Posted: 5/17/2013 2:45:15 PM EST
Illinois Sen. William Haine, D-Alton, argues medical marijuana legislation while on the Senate floor during session at the Illinois State Capitol Friday, May 17, 2013, in Springfield Ill. (AP Photo/Seth Perlman)
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Posted: 5/17/2013 6:34:29 AM EST
FILE - In a Tuesday Aug. 10, 2010 file photo, Georgia gubernatorial candidate Karen Handel speaks to reporters after casting her ballot in the Georgia runoff election in Roswell, Ga. Handel said Friday May 17, 2013 she'll be running for an open U.S. Senate seat in Georgia. (AP Photo/John Bazemore, File)
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Posted: 5/17/2013 3:46:14 AM EST
Senate Minority Leader Mitch McConnell of Ky., accompanied by Rep. Michele Bachmann, R-Minn., chair of the Tea Party Caucus, left, and others, speaks during a news conference on Capitol Hill in Washington, Thursday, May 16, 2013, to discuss the IRS targeting Tea Party groups. (AP Photo/Molly Riley)
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Posted: 5/16/2013 3:21:30 PM EST
FILE – In this April 9, 2013 file photo, Energy Secretary nominee Ernest Moniz, of Massachusetts testifies on Capitol Hill in Washington. The Senate has unanimously confirmed President Barack Obama's nominee to lead the Energy Department. (AP Photo/Manuel Balce Ceneta, File)
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Posted: 5/16/2013 2:36:23 PM EST
Ernest Moniz testifies before a Senate Energy & Natural Resources Committee hearing on his nomination to be energy secretary on Capitol Hill in Washington April 9, 2013. REUTERS/Kevin Lamarque
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Posted: 5/16/2013 2:36:23 PM EST
Ernest Moniz testifies before a Senate Energy & Natural Resources Committee hearing on his nomination to be energy secretary on Capitol Hill in Washington April 9, 2013. REUTERS/Kevin Lamarque
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Posted: 5/16/2013 12:29:16 PM EST
Gina McCarthy testifies before a Senate Environment and Public Works Committee hearing on her nomination to be administrator of the Environmental Protection Agency on Capitol Hill in Washington April 11, 2013. REUTERS/Joshua Roberts
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Posted: 5/16/2013 9:33:20 AM EST
Gary Gensler, Chairman of the Commodity Futures Trading Commission, testifies before the Senate Banking, Housing and Urban Affairs Committee in Washington February 14, 2013. REUTERS/Gary Cameron
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Posted: 5/15/2013 5:51:57 PM EST
FILE - This April 10, 2013 file photo shows Marilyn Tavenner speaking during a news conference at the Health and Humans Services (HHS) Department in Washington. Tavenner, a former intensive care nurse with a businesslike approach to a politically divisive public policy area won Senate approval Wednesday to run Medicare and other major health insurance programs. (AP Photo/Manuel Balce Ceneta, File)
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Posted: 5/15/2013 5:44:28 PM EST
Marilyn Tavenner testifies before a Senate Finance Committee hearing on her nomination to be administrator of the Centers for Medicare and Medicaid Services on Capitol Hill in Washington April 9, 2013. REUTERS/Kevin Lamarque
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Posted: 5/14/2013 10:07:45 PM EST
Senate Minority Leader Mitch McConnell (R-KY) speaks to the media following the weekly Senate Republican policy meeting on Capitol Hill in Washington, February 26, 2013. REUTERS/Jason Reed
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Posted: 5/14/2013 9:13:49 PM EST
Senate Minority Leader Mitch McConnell (R-KY) speaks to the media following the weekly Senate Republican policy meeting on Capitol Hill in Washington, February 26, 2013. REUTERS/Jason Reed
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Posted: 5/14/2013 8:26:16 PM EST
Senate Minority Leader Mitch McConnell (R-KY) speaks to the media following the weekly Senate Republican policy meeting on Capitol Hill in Washington, February 26, 2013. REUTERS/Jason Reed
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Posted: 5/14/2013 4:35:33 PM EST
Senate Minority Leader Mitch McConnell (R-KY) speaks to the media following the weekly Senate Republican policy meeting on Capitol Hill in Washington, February 26, 2013. REUTERS/Jason Reed
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Posted: 5/14/2013 4:02:42 PM EST
Senate Minority Leader Mitch McConnell (R-KY) speaks to the media following the weekly Senate Republican policy meeting on Capitol Hill in Washington, February 26, 2013. REUTERS/Jason Reed
