Final answer:
The tensions between Alexander Hamilton and Thomas Jefferson that led to the 1st political parties were primarily due to their differences over issues like federal power and banking.
Step-by-step explanation:
The tensions between Alexander Hamilton and Thomas Jefferson that led to the formation of the first political parties were primarily due to their differences over issues like federal power and banking.
Hamilton, as Secretary of the Treasury, advocated for a strong central government and a national banking system. His economic policies were seen as favoring the interests of the wealthy and were opposed by Jefferson, who believed in a more decentralized government and agrarian economy.
These differences in political ideology and policy led to the formation of the Federalist Party, which supported Hamilton's vision, and the Republican Party, later known as the Democratic-Republicans, which opposed it.