United Farm Workers members were among the crowd that filled the lawn on Capitol Hill during an immigration rights rally Wednesday. Jacquelyn Martin/AP hide caption

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A member of the New York Hispanic Clergy Organization (right) is confronted by a pro-gay-marriage activist outside the Supreme Court on Tuesday. Karen Bleier/AFP/Getty Images hide caption

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Ohio State College Republicans await Mitt Romney's son, Craig, who canvassed with them in Columbus last October. Courtesy College Republicans at The Ohio State University hide caption

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AFL-CIO President Richard Trumka leaves the White House on Tuesday after meeting with President Obama to discuss immigration policy and other issues. Alex Wong/Getty Images hide caption

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RNC Chairman Reince Priebus, shown at the Republican National Convention in August, has been re-elected to another two-year term. Mark Wilson/Getty Images hide caption

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Reince Priebus, shown at the Republican National Convention in August, says Republicans need to "grow our party without compromising our principles." Stan Honda/AFP/Getty Images hide caption

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Republican House Speaker John Boehner administers the oath of office to Amash during a mock swearing-in ceremony on Jan. 5, 2011, at the start of Amash's first term. Jacquelyn Martin/AP hide caption

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Sen. Kelly Ayotte, joined by Sen. Lindsey Graham and Sen. John McCain, discusses the attack on the U.S. Consulate in Benghazi, Libya, on Capitol Hill earlier this month. J. Scott Applewhite/AP hide caption

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Voters cast their ballots during the first day of early voting at the Meadows Mall on Oct. 20 in Las Vegas, Nev. David Becker/Getty Images hide caption

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McGovern listens to a constituent in 1974. Jim Mone/AP hide caption

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Republican presidential candidate Mitt Romney lived in Stevens Hall while he was attending Cranbrook School in Bloomfield Hills, Mich. Bill Pugliano/Getty Images hide caption

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Paul Ryan addresses the Family Research Council Action Values Voter Summit in Washington, D.C., on Friday. Mandel Ngan/AFP/Getty Images hide caption

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Towns near the Ohio River, including Steubenville, seen here in 2009, are home to many undecided voters. One of them, Brian Snider, says, "This is pretty much a ghost town." Rick Gershon/Getty Images hide caption

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Senate Majority Leader Harry Reid, D-Nev. speaks to the media at the Capitol in March. T.J. Kirkpatrick/Getty Images hide caption

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