In 2015, John Bolton wrote an op-ed article for The New York Times with a simple, startling headline: "To Stop Iran's Bomb, Bomb Iran." A former State Department official and former U.S. ambassador to the United Nations under President George W. Bush, Bolton has earned a reputation in Washington and around the world as an ultra-hawkish figure whose unapologetic brand of foreign policy has led him to clash even with fellow Republicans. In Bolton, Trump has selected yet another disruptive figure for a senior adviser — a lightning rod even within in his own party. The position does not require Senate confirmation, a sore spot for Bolton who resigned from his unconfirmed recess appointment at the United Nations in 2006 after it became clear he could not win Senate confirmation.