Final answer:
The first political parties in the United States formed because of differences between Alexander Hamilton and Thomas Jefferson in George Washington's cabinet.
Step-by-step explanation:
The first political parties in the United States formed because of differences between Alexander Hamilton and Thomas Jefferson in George Washington's cabinet. Alexander Hamilton was the leader of the Federalist faction, which supported a strong central government and his economic policies. Thomas Jefferson, on the other hand, led the opposition as a Democratic-Republican, advocating for a limited central government and state rights.