John Jay was an American statesman, patriot, diplomat, Founding Father, abolitionist, negotiator, and signatory of the Treaty of Paris of 1783. He served as the second Governor of New York and the first Chief Justice of the United States (1789–1795). He directed U.S. foreign policy for much of the 1780s and was an important leader of the Federalist Party after the ratification of the United States Constitution in 1788.