During the American Revolution, what problems provoked political leaders to consider changing the government?

It was less about changing the type of government, and more about creating a nation with a new type of government.

The more cynical view is to say that Americans seperated themselves from the British because they--the colonials--wanted to be imperials.

Americans had been experimenting with government since the founding of the colonies.

Only when the colonies became important to the British Empire did Parliament and the King attempt to make the colonies pay their share of costs as a member of the empire.

American elites, the ones who controlled the upper and lower houses of the colonial legislatures, struggled to define what exactly the new type of government would look like. Many did imagine it would be a republic. Educated gentlemen would court the votes of landless men. But there would be no direct democracy.

The war did not change that view. That image basically stayed the same throughout the war. The only people who objected to this republican vision were the landless, and the new class of businessmen who ran for office in the lower assemblies. During the war, this rising class of men struggled to participate in colonial politics. When the decision was made by the Second Continental Congress to declare independence, a wave of constitution-writing fever hit the colonies, and each newly sovereign state wrote constitutions that attempted to settle the issue of representation: who could participate; who could vote.

With that, the argument over who would rule the newly created United States took shape during the war. Yet it did not affect the constitution of the U.S. during the war--the Articles of Confederation. Yet it can be argued that, with the creation of new state constitutions, the seeds of the change of governmet were expressed during the war.