The Supreme Court won’t halt the Trump administration’s ban on bump stocks, Bloomberg’s Greg Stohr reports. The ban, which prohibits the device that enables semiautomatic weapons to fire continuously like machine guns, was implemented in the wake of the mass shooting in Las Vegas, where Stephen Paddock used guns fitted with bump stocks to massacre 58 people. President Trump promised to ban bump stocks after the shooting, and after a series of legal maneuvers, the Justice Department ruled in December that bans on fully automatic weapons applied to bump stocks, too. Bump-stock holders were given 90 days to turn in or destroy the attachments. Gun-rights groups had asked the Supreme Court twice to halt the ban’s implementation; one request was denied Tuesday, the other was rejected Thursday.