So, let's say to give a specific POD, James Madison dies from an illness before he can draft his plan for the US constitution, which pretty much puts the US Constitutional Convention waaaaaaaaaaay back. For arguments sake, let's say it fails without his leadership and vision. The USA continues to be a loose confederation of states with a virtually powerless central government. The French Revolution goes off like OTL, and Napoleon comes to power. Now, what happens to Louisiana? He's not going to sell it to the English, he's kind of at war with them. The American states (if there hasn't been any infighting yet) are week and unstable at best, and the federal government can't buy the land. Maybe a state could, like Virginia, but that would likely launch a civil war in the USA with people fearing Virginia's power and already extensive land claims. Is the Haitian Revolution butterflied away? If not, is its success? Could Nappy actually carve out a new French Empire in the Americas without the USA? How to the Quebecois react to a viable French power in the Americas? How does all of this affect the Napoleonic Wars?