Who were the federalists? = Alexander Hamilton, John Jay, and James Madison......
who was their main leader? = I cant find the answer for this one, Sorry
what did they believe? = The supporters of the proposed Constitution called themselves "Federalists." Their adopted name implied a commitment to a loose, decentralized system of government. In many respects "federalism" — which implies a strong central government — was the opposite of the proposed plan that they supported
