William Blount: 1797 — 1st person in theUS to be impeached by the House of Representatives, the first time it even exercised this power, and was simultaneously expelled from the US Senate on July 8. He was found guilty ‘of a high misdemeanor, entirely inconsistent with his public trust and duty as a Senator,’ because he had been active in a plan to incite the Creek and Cherokee Indians to aid the British in conquering the Spanish territory of West Florida.