Katie Couric (right) and White House Senior Adviser Valerie Jarrett, speaking, participate in a panel discussion following a May 16 screening of Couric's documentary Under the Gun at the U.S. Navy Memorial in Washington. Paul Morigi/Getty Images for EPIX hide caption

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Police stand guard during demonstrations in reaction to a Cleveland police officer being acquitted of manslaughter charges on May 23, 2015, in Cleveland. Ricky Rhodes/Getty Images hide caption

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A worker assembles a handgun at the new Beretta plant in Gallatin, Tenn. The Italian gun maker has cited Tennessee's support for gun rights in moving its production from its plant in Maryland. Erik Schelzig/AP hide caption

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Seeking A Warmer Welcome, Gun Factory Moves Down South
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S.C. State Rep. Mike Pitts, seen during last summer's debate over removing the Confederate battle flag from the State House grounds, has introduced a bill called the South Carolina Responsible Journalism Registry Law. John Bazemore/AP hide caption

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Anti-gun groups and state officials joined New Yorkers Against Gun Violence to mark the sixth month anniversary of the Newtown massacre on the steps of New York City Hall in 2013. Bebeto Matthews/AP hide caption

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Gun Stocks Up, But Activists Move To Expand Anti-Investment Push
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Republican presidential candidate Sen. Marco Rubio, R-Fla. holds a rifle during a campaign stop Jan. 15, 2016, at Sturm, Ruger & Co., in Newport, N.H. Matt Rourke/AP hide caption

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Establishment Republicans Scramble To Top Trump
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The handgun sales counter at Northwest Armory in Portland, Ore. David Gilkey/NPR hide caption

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In Campaign For Tougher Gun Laws, Advocates Focus On States
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"We maybe can't save everybody, but we can save some," President Obama said at the White House Tuesday, discussing his plans to reduce gun violence with tighter background checks and other measures. He was joined onstage by Vice President Biden and people whose lives have been affected by gun violence. Carolyn Kaster/AP hide caption

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NBA Dares To Speak Out On Gun Violence
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In this handout photo provided by the San Bernardino County Sheriff's Department, four guns are seen near the site of a shootout between police and suspects. The shooters left 14 people dead and 21 others wounded. San Bernardino County Sherrif's Department via Getty Images hide caption

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'Straw Buyers' Of Guns Break The Law — And Often Get Away With It
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Tashfeen Malik, left, and Syed Farook, who killed 14 people in San Bernardino, Calif., are being called supporters and martyrs by ISIS. The wife and husband team are seen here in photos provided by the FBI, left, and the California Department of Motor Vehicles. AP hide caption

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Nasya Fair and her son Korbyn, 4, look at a growing memorial for the Colorado Springs, Colo., shooting victims. Colorado and California are the latest states at the center of the gun control debate. Brent Lewis/Denver Post via Getty Images hide caption

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From Colorado To California, The Gun Control Debate Has Become Personal
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Buddie, the mascot for the pro-marijuana legalization group ResponsibleOhio, waits on a sidewalk to greet passing college students during a promotional tour at Miami University of Ohio last month. John Minchillo/AP hide caption

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