Why did Alexander Hamilton promise to locate the nation terminate capital on the potomac river?

Alexander Hamilton promised to locate the nation's permanent capital on the Potomac River to gain support from southern states for his financial plans, particularly the federal assumption of state debts. By placing the capital in a southern location, he aimed to appease those states that felt marginalized by the initial proposals for the capital to be in the North. This strategic compromise helped facilitate unity among the states and fostered cooperation in the new federal government. Ultimately, it symbolized a balance between regional interests in the fledgling nation.