A Tea Party supporter rings a bell in protest of the health care law in front of the U.S. Supreme Court, as Obamacare supporters shout behind her. Alex Wong/Getty Images hide caption

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Part of Texas' congressional redistricting map from 2003. The lead plaintiffs in Evenwel v. Abbott are residents of a state Senate district in Texas who say their equal rights to representation are diluted because Texas equalized the districts in population terms, and€” not in terms of eligible voters. Harry Cabluck/AP hide caption

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Republican presidential candidate Sen. Rand Paul's 10 1/2 hours on the Senate floor were about liberty, the Constitution and the need to stand out in a field of presidential hopefuls. Andrew Harnik/AP hide caption

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A young female protester faces down armed police officers at an anti-Vietnam War demonstration outside the 1968 Democratic National Convention in Chicago. Hulton Archive/Getty Images hide caption

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Senate Minority Leader Harry Reid, D-Nev., (left) and Majority Leader Mitch McConnell, R-Ky., at a ceremony last month at the U.S. Capitol. Chip Somodevilla/Getty Images hide caption

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Hillary Clinton is running with all the advantages and challenges of someone who has been in the public eye for more than two decades. Andrew Burton/Getty Images hide caption

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