[dredmorbius]

Excepting Eisenhower and Johnson, every US president (or president-elect) has been subject to an assassination attempt dating back nearly a century to Herbert Hoover (1929--1933).

Shots have been fired at FDR, Truman, Kennedy(†), Ford, Reagan, Clinton, and yesterday.

Bombs or explosives have been placed or deployed against Hoover, Truman, Kennedy, GHW Bush, Clinton, GW Bush, and Obama.

<https://en.wikipedia.org/wiki/List_of_United_States_presiden...>

[dredmorbius]

Clarifying: attempt or plot, though some physical action was taken against all but Eisenhower & Johnson, per Wikipedia.