King Louis XVI of France was an unlikely hero of the American Revolution but his fleet's blockade of Yorktown enabled Washington to checkmate the British troops trapped there and win independence for the colonies. Payback was the French monarch's reward in engineering England's defeat in 1781. Not twenty years prior it was the British expelling France from North America in the French and Indian War. Now with both nations removed from the domain there was little to resist colonial expansion west and the birth of a new republic.
As for the young French monarch, he was a man out of time.
Thomas Jefferson viewed French reformers as kindred spirits in republicanism - power residing with the people. John Adams saw these same revolutionaries as dreamy, ill-informed novices ill-prepared to hold power. Both men while serving as diplomats to France saw the nation as a powder keg ready to blow. War, debt and stagnant economics had people already simmering when the affairs of state were handed off to nineteen year old Louis XVI in 1774. Aristocracy was ill-suited for the times. Louis knew it. Attempts were made for a peaceful transition to constitutional monarchy but storming the Bastille in 1789 turned the French Revolution into carnage and confusion, overseen with cruelty and oppression.
A black-eye for republicanism, fears Adams. Does this mean you won't be honoring your alliance with the United States?
As author of the Declaration of Independence how could Thomas Jefferson not meddle in French reform under the monarch's nose while Minister to France? Jefferson sees a French constitutional system ahead. They are "awakened by our revolution." About the time of the Bastille, Washington calls Jefferson home to be his Secretary of State. Jefferson had hoped to be part of the unfurling of a new French republic. Instead he was to return to a Federalist Philadelphia and serve people having a fundamentally different vision for America than his.
Upon leaving the army George Washington pledges to never again hold public office. Not with this government, anyway. To its last the war had been verging on defeat. Congress had no money to supply the army. Yorktown was the hail Mary that worked.
In September, 1788 a new Constitution had been ratified and a government was being formed in Philadelphia. Alexander Hamilton writes Washington a letter requesting him to be their president. His selection was the unanimous choice of the Electoral College. Refusing to serve would leave everyone with a sense of desertion.
Washington's consent meant Hamilton would play an important role as Secretary of the Treasury. Hamilton's policies on money and power were controversial but were also shared by Washington. His stature insured unpopular measures would go largely unchallenged. Political criticisms voiced against Washington's administration were directed at Hamilton - not Washington. At least through the first term the president remained largely an untouchable.