Which founding figure is known for serving as U.S. ambassador to France during the American Revolution?

Thomas Jefferson is recognized for serving as the U.S. ambassador to France during the American Revolution. His role as an ambassador was crucial in strengthening relations between the newly formed United States and France, which was an essential ally in the fight against British colonial rule. Jefferson's time in France not only helped to secure financial and military support for the revolutionary cause but also influenced his views on government, philosophy, and diplomacy, which he later applied in his political career.

The other founding figures highlighted do not align with this specific role; for example, James Madison, while a significant architect of the Constitution and a key political leader, did not serve as an ambassador during the revolution. Alexander Hamilton, known for his influence on establishing the financial system of the United States, also did not have a role in diplomatic services in France during that time. George Washington was primarily focused on military leadership throughout the revolution and was appointed as the first President of the United States after the war.