Butler was the site of the July 13, 2024, attempted assassination of Trump by Bethel Park resident Thomas Matthew Crooks, 20, who opened fire at an outdoor rally. One of Crooks' bullets grazed Trump's ear as he was nearly 10 minutes into his speech. Another bullet killed volunteer firefighter Corey Comperatore.

Shawn Monper, 32, of Butler, Pennsylvania, where President Trump was shot last July, said he planned to ‘assassinate him myself.’