Rufus King was an American Founding Father, lawyer, politician, and diplomat. He was a delegate from Massachusetts to the Continental Congress and the Philadelphia Convention and was one of the signers of the United States Constitution in 1787. After formation of the new Congress, he represented New York in the United States Senate. He emerged as a leading member of the Federalist Party and was the party's last presidential nominee during the 1816 presidential election.

The Constitutional Convention took place in Philadelphia from May 25 to September 17, 1787. Although the convention was intended to revise the league of states and first system of government under the Articles of Confederation, the intention from the outset of many of its proponents, chief among them James Madison of Virginia and Alexander Hamilton of New York, was to create a new frame of government rather than fix the existing one. The delegates elected George Washington of Virginia, former commanding general of the Continental Army in the late American Revolutionary War (1775–1783) and proponent of a stronger national government, to become President of the convention. The result of the convention was the creation of the Constitution of the United States, placing the Convention among the most significant events in American history.