Supporters for gun rights gather outside the National Shooting Sports Foundation headquarters in Newtown, Conn., on March 28. Jessica Hill/AP hide caption

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Sen. Jeanne Shaheen, D-N.H., on Capitol Hill earlier this year. J. Scott Applewhite/AP hide caption

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Rep. Paul Ryan, R-Wis., and Sen. Patty Murray, D-Wash., prepare to meet reporters on Capitol Hill on Oct. 17, after a breakfast meeting when the leaders of the bipartisan budget conference say they pledged to seek "common ground." Win McNamee/Getty Images hide caption

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Lobbyists for Citigroup, one of the country's largest banks, offered lawmakers draft language for a bill that was obtained by New York Times and Mother Jones reporters. And 70 of the 85 lines in the final House bill reflected Citigroup's recommendations. Mark Lennihan/AP hide caption

itoggle caption Mark Lennihan/AP