Senate

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**FILE** Copies of President Obama's budget plan for fiscal year 2014 are distributed to Senate staff on Capitol Hill in Washington on April 10, 2013. (Associated Press)

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Sen. Marco Rubio, Florida Republican, arrives for a vote at the Senate chamber on Capitol Hill in Washington on Monday, May 6, 2013. (AP Photo/J. Scott Applewhite)

Sen. Ron Johnson (R-Wis.), left, the senator who former Secretary of State Hillary Clinton yelled at during a senate hearing on the attacks in Benghazi, speaks with Rep. Louie Gohmert (R-Texas), right, before a House Oversight and Government Reform Committee hearing on the September 11, 2012 attack in Benghazi, Libya on Capitol Hill, Washington, D.C., Wednesday, May 8, 2013. (Andrew Geraci/The Washington Times)

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Sen. Ron Johnson (R-Wis.), right, the senator who former Secretary of State Hillary Clinton yelled at during a senate hearing on the attacks in Benghazi, and Rep. Louie Gohmert (R-Texas), center, arrive before a House Oversight and Government Reform Committee hearing on the September 11, 2012 attack in Benghazi, Libya on Capitol Hill, Washington, D.C., Wednesday, May 8, 2013. (Andrew Harnik/The Washington Times)

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Sen. Dianne Feinstein, D-Calif. waits for an elevator on Capitol Hill in Washington, Wednesday, April 17, 2013, after speaking about gun legislation on the Senate floor. A bipartisan effort to expand background checks was in deep trouble Wednesday as the Senate approached a long-awaited vote on the linchpin of the drive to curb gun violence. (Associated Press)

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Sen. Joe Manchin III, West Virginia Democrat (right), a lifelong hunter and NRA member, plans to "go to every gun show" in the country in his effort to convince doubters including NRA members of the Senate background-check bill's merit.

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Former Rep. Gabby Giffords is helped as she arrives for a news conference in the Rose Garden of the White House, Wednesday, April 17, 2013, in Washington, about measures to reduce gun violence and the bill to expand background checks on guns that was defeated in the Senate. (AP Photo/Carolyn Kaster)

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**FILE** Arkansas state Sen. Gary Stubblefield, Branch Republican, speaks April 5, 2013, on the Senate floor at the Arkansas state Capitol in Little Rock for his bill that would ban the state from awarding grants to entities that perform abortions or abortion referrals. The measure narrowly failed in the Senate, but Stubblefield said he may try again to get the restriction through the Legislature. (Associated Press)

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** FILE ** French Justice Minister Christiane Taubira (right) attends the debate in the French Senate on the legalization of same-sex marriage and adoption for same-sex couples, in Paris on Thursday, April 4, 2013. (AP Photo/ Jacques Brinon)

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Senate Minority Leader John McKinney, R-Fairfield, who represents Newtown, Conn., right, and Senate President Donald Williams, D-Brooklyn, shake hands after the passage of a gun-control bill in the Senate chamber at the Capitol in Hartford, Conn., Wednesday, April 3, 2013. (AP Photo/Charles Krupa)