On July 11, 1804, Vice President Aaron Burr, a prominent Republican challenged and killed Alexander Hamilton, opposing Federalist to a duel on the grounds that Hamilton had publicly maligned his character.

Aaron Burr, Jr. was an American politician, Revolutionary War participant, and adventurer. He served as the third Vice President of the United States (1801–1805) under Thomas Jefferson.

Alexander Hamilton was one of the most influential of the United States' founding fathers. As the first secretary of the treasury he placed the new nation on a firm financial footing, and although his advocacy of strong national government brought him into bitter conflict with Thomas Jefferson and others, his political philosophy was ultimately to prevail in governmental development.

Alexander HamiltonAaron Burr
At dawn on the morning of July 11, 1804, political antagonists and personal enemies Alexander Hamilton and Aaron Burr met on the heights of Weehawken, New Jersey, to settle their longstanding differences with a duel. The participants fired their pistols in close succession. Burr's shot met its target immediately, fatally wounding Hamilton and leading to his death the following day. Burr escaped unharmed. This tragically extreme incident reflected the depth of animosity aroused by the first emergence of the nation's political party system.