A woman signs a giant banner printed with the preamble to the U.S. Constitution during a demonstration against the Citizens United ruling in Washington in October 2010.
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John Koskinen, President Obama's choice to head the Internal Revenue Service, testifies Dec. 10 on Capitol Hill before the Senate Finance Committee hearing on his nomination.
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Sen. Jeanne Shaheen (D-N.H.) in the U.S. Capitol building May 14, 2013. Groups are creating ads in New Hampshire to attack Shaheen 10 months before the midterm congressional elections.
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