The claim
"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."
Sources and attribution
Original review: PolitiFact. Structured data compiled by Data Commons under CC BY 4.0. Publisher article content is subject to its own terms.
Updated