Attempted assassination of Theodore Roosevelt

On October 14, 1912, former U.S. president Theodore Roosevelt survived an assassination attempt by John Schrank, a former saloonkeeper, while Roosevelt was campaigning for the presidency in Milwaukee, Wisconsin. Schrank's bullet lodged in Roosevelt's chest after penetrating Roosevelt's steel glasses case and passing through a 50-page-thick (single-folded) copy of his speech titled "Progressive Cause Greater Than Any Individual", which he was carrying in his jacket pocket.

Source: Wikipedia — Attempted assassination of Theodore Roosevelt (CC BY-SA 4.0)