In the history of the U.S., four sitting presidents have been assassinated, while two have been wounded by assassination attempts.
The history of assassinations in the U.S. is largely a history of anti-Republican and leftist violence; all of the victims were Republicans except for John F. Kennedy, who was killed by a communist.
Before Donald Trump survived the attack on his life Saturday, two presidents were wounded in assassination attempts. One was Theodore Roosevelt, who, like Trump, ran for office again four years after leaving the White House. In 1912, Roosevelt, a progressive who was running as a third-party candidate, was shot but gave an 84-minute speech while the bullet was lodged in him.
The other was Ronald Reagan, who was shot in 1981 by John Hinckley Jr, who also wounded three others.
The first president to be killed by assassination was Abraham Lincoln in 1865. His…