In February 2018, after the Stoneman Douglas High School shooting, Schumer was one of four Democratic senators to sign a letter to Trump asserting that were he "to endorse legislation to require a background check on every gun purchase, without other poison pill provisions attached, we could finally move much closer towards the comprehensive system that you called for after the Stoneman Douglas attack" and that there was no justification for allowing people denied firearms by federally licensed dealers to "simply visit a gun show or go online to purchase the same gun that they were denied at the store".