An assassination attempt on former President Donald Trump on Saturday marks the first such attack on a U.S. president or major party candidate since Ronald Reagan was shot in 1981. The incident, which occurred less than four months before the upcoming election, is expected to have significant political repercussions. The attack adds to a long history of political violence in the United States, which has seen several presidents and presidential candidates targeted by gun violence. In the wake of the attempt, many of Trump's supporters have sought to blame Democrats for stoking political violence. This is the first attempted attack on a presidential candidate in 52 years.