President Obama, accompanied by Vice President Joe Biden, talks at the White House on Jan. 16 about proposals to reduce gun violence. Obama has called for a ban on military-style assault weapons and high-capacity ammunition magazines and is pushing other policies in the wake of the mass shooting last month at an elementary school in Newtown, Conn. Charles Dharapak/AP hide caption

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Senate Judiciary Committee Chairman Patrick Leahy, D-Vt., voted to allow guns in national parks and on Amtrak trains, but rejects suggestions that he'll slow-walk gun control efforts through Congress. Chip Somodevilla/Getty Images hide caption

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A Gun Owner From The Left, Sen. Leahy Leads The Debate

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