A new ballot measure in Washington will determine if courts can take away guns from people deemed to be dangerous to themselves or others. The initiative is well-funded and comes two years after the state passed a different initiative for background checks on gun sales, including those that are private. Spencer Platt/Getty Images hide caption

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Gun Control Groups Aim Their Money At States — And The Ballot

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A box of 500 .22 cal. bullets are offered for sale at an Illinois gun store in 2012. California voters are voting on a measure that would require ammunition buyers to face the same background checks gun buyers in the state do. Scott Olson/Getty Images hide caption

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Should Ammunition Buyers Face Background Checks? California's Voters Will Decide

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Members of the Secret Service stand guard near Democratic presidential candidate Hillary Clinton in August as she speaks at a rally at International Brotherhood of Electrical Workers Local 357 Hall in Las Vegas. Andrew Harnik/AP hide caption

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Protesters call for House Speaker Paul Ryan to allow votes on gun violence prevention legislation in Washington, D.C., on July 6. Manuel Balce Ceneta/AP hide caption

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Manuel Balce Ceneta/AP

After Mass Shootings, Action On Gun Legislation Soars At State Level

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Gov. Jerry Brown signed six new bills into law Friday, nearly seven months after a mass shooting in San Bernardino, Calif. Two of the new laws restrict ammunition. In this photo from last summer, a man enters a gun store in Los Angeles. Mark Ralston/AFP/Getty Images hide caption

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The trade in alcohol — illegal under Prohibition — led to the rise of organized crime and men such as Chicago gangster Al Capone, photographed here on Jan. 19, 1931. AP hide caption

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AP

Prohibition-Era Gang Violence Spurred Congress To Pass First Gun Law

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A marksman sights in on a target during a class for an Illinois concealed carry permit in February 2014. Scott Olson/Getty Images hide caption

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Handguns In America And The Rise Of The 'Concealed-Carry Lifestyle'

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Rep. John Lewis, D-Ga., leads lawmakers down the steps of the Capitol to greet a crowd assembled after House Democrats ended their 26-hour-long sit-in protest on Thursday. Evan Vucci/AP hide caption

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This photo provided by Rep. John Yarmuth, D-Ky., shows Democrat members of Congress, including Rep. John Lewis, D-Ga., (center) and Rep. Joe Courtney, D-Conn., (left) participating in a sit-down protest seeking a vote on gun control measures, Wednesday on the House floor. Rep. John Yarmuth/AP hide caption

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Rep. John Yarmuth/AP

Everytown for Gun Safety teaches survivors of shootings how to use their stories to advocate for gun control legislation. Ruby Wallau/NPR hide caption

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A Million-Mom Army And A Billionaire Take On The NRA

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A woman walks with a sign to protest gun violence and call for sensible gun laws outside the White House on Monday. Molly Riley/AFP/Getty Images hide caption

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Assault Rifle Bans Find Life On State Level

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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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Bebeto Matthews/AP

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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