evidence: Did Donald Trump oversee the biggest-ever one-year rise in murders? [...] The number of murders in the U.S. rose by 5,795 from 2019 to 2020, when Donald Trump was president. That’s the largest one-year increase since such data began being systematically recorded in the early 1960s. [...] "As president, Trump oversaw the largest increase in murder in U.S. history and he would make the gun violence epidemic worse if reelected," Biden said in a campaign email.