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After a Colorado gunman killed 10 people in what was the second mass shooting in a week, Democrats and gun control advocates renewed calls for a nationwide ban on assault weapons, like the federal law that was in effect from 1994 until 2004. Joy Behar, co-host of ABC’s The View, joined the chorus March 23. In 2004, George W. Bush lifted the ban on those rifles, and since then, the number of massacres has increased 183%, Behar said, after rattling off a list of high-profile mass shootings from recent years where the perpetrators used AR-15 style weapons. During the ban, there were 12 incidents, Behar continued. Since he lifted the ban, there were 34 incidents. Anybody, or a right-minded person, can see that that gun has to go. PolitiFact has fact-checked similar claims assessing the impact of the 1994 assault-weapons ban several times following other mass shootings. We wondered if Behar’s statement was true. The first part of her statement was not. The 1994 ban enacted under former President Bill Clinton expired because of a sunset provision written into the law, not because Bush decided to axe it, as Behar claimed. News reports from the time said he was on board with renewing it. But on the second part, we found that Behar’s numbers aligned with at least one researcher’s findings on mass shootings during and after the ban. And experts who study mass shootings said her broader point — that the number of high-fatality incidents has increased since the ban went away — is largely accurate, although proving cause-and-effect is difficult. The 1994 ban had a sunset provision The 1994 law , part of an anticrime package authored by then-Sen. Joe Biden, banned the manufacture, transfer and possession of certain semiautomatic firearms classified as assault weapons as well as certain high-capacity ammunition magazines of more than 10 rounds. Clinton signed the law, and Bush was in office when it expired. But Bush didn’t scrap the law. It had a sunset provision and would end after 10 years without renewal or reinstatement, said Adam Lankford, a professor of criminology and criminal justice at the University of Alabama. News accounts from the time indicated that as Congress considered extending the ban beyond 2004, Bush said he would support doing so. There were attempts by members of Congress to reauthorize it, including Dianne Feinstein, and they all failed, said Jaclyn Schildkraut, associate professor of criminal justice at the State University of New York at Oswego. But it was not George Bush who lifted it. Behar’s numbers line up with one study There’s no universally accepted definition for mass shootings or massacres, as Behar described the incidents in question. Asked where Behar got her numbers, an ABC spokesperson pointed to a 2018 report in the Washington Post . The report documented the findings that Louis Klarevas, research professor at Teachers College, Columbia University, outlined in his 2016 book, Rampage Nation. Klarevas examined incidents over three decades — before, during and after the 1994 ban — in which six or more people were shot and killed, not including the perpetrators. His findings shook out this way: The decade before the ban, 1984-94: 19 incidents. The decade during the ban, 1994-04: 12 incidents. The decade after the ban sunset, 2004-14: 34 incidents. That shows a 183% increase from the decade during the ban to the decade after it ended. Klarevas told PolitiFact that Behar’s claim was largely accurate, save for the blame she wrongly heaped on Bush — and one other caveat. The research Behar cited does not account for all high-fatality mass shootings since the federal ban expired, Klarevas said. It accounts for only the first 10 years after the ban. Behar actually understated the raw numbers, because she said 34 incidents ‘since’ the ban was ended, Lankford said. Klarevas said that since the ban expired, he has counted 62 incidents in which six or more people were shot and killed, including the recent shootings in Atlanta and Boulder, Colo. To put this in perspective, during the decade of the federal assault weapons ban, there were 12 high-fatality mass shootings. That comes out to an average of 1.2 incidents per year, Klarevas said. In the 16.5 years since the expiration of the federal ban, there have been 62 high-fatality mass shootings. That comes out to an average of 3.8 incidents per year. Between the ban’s expiration and the end of 2019, 32% of high-fatality mass shootings Klarevas recorded involved firearms classified as assault weapons, and 82% involved large-capacity magazines, he said. Other related studies Other research backs Behar’s broader point that mass shootings have gone up since the ban ended. Not all mass shootings are carried out with the style of weapons that were banned. Schildkraut’s research follows a different definition of mass shootings that counts targeted, public shootings in which multiple victims are injured or killed within 24 hours. By her definition, which doesn’t count shootings related to gang violence or terroristic activity, there were 13 mass shootings involving an assault weapon during the ban, and 27 in the decade after. We used a different definition of public mass shootings, but our numbers are similar, she said. Grant Duwe, director of research and evaluation for the Minnesota Department of Corrections, who defines mass shootings as incidents where four or more victims are publicly killed, told the Washington Post that his numbers show there has been an increase in both the incidence and severity of mass public shootings (on a per capita basis) since the latter part of the 2000s. Other recent research came from Christopher Koper, a George Mason University professor who wrote a 2004 Justice Department study that gave fuel to both sides of the gun control debate. In a 2020 report, Koper said the ban on assault weapons and large-capacity magazines had exemptions and loopholes that limited its short-term effects, but its expiration in 2004 was followed by an increase in the use of these weapons in mass shootings and other crimes. Research Lankford co-authored found that attackers’ increased use of semi-automatic rifles and assault weapons is part of the reason why the U.S. has had more high-fatality shootings over time. Another reason appears to be a change in motives that has more recent mass shooters seeking to kill large numbers of people for fame and attention, Lankford said. In previous fact-checks , experts cautioned that it's difficult to directly tie increases in mass shootings to the expiration of the 2004 ban. Klarevas, for his part, argued that the data are strong enough to suggest a causal relationship. A 2019 study that he co-authored, which focused on large-capacity magazines, suggested that bans on large-capacity magazines were effective at reducing mass shooting violence, he said. Our ruling Behar said, In 2004, George W. Bush lifted the ban on those (AR-15 type) rifles, and since then, the number of massacres has increased 183%. During the ban, there were 12 incidents. Since he lifted the ban, there were 34 incidents. The ban expired because of a sunset provision in the law, not because of Bush. The numbers in Behar’s claim aligned with — and even understated — one researcher’s findings on the number of mass shootings that occurred during and after the 1994-to-2004 ban. Other research has similarly identified increases in such incidents since the ban ended, though the exact numbers vary partly due to how mass shooting is defined. We rate this claim Half True.
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