Pro-Administration "Party" is a term by historians to describe the supporters of the policies of George Washington

George Washington

George Washington was the dominant military and political leader of the new United States of America from 1775 to 1799. He led the American victory over Great Britain in the American Revolutionary War as commander-in-chief of the Continental Army from 1775 to 1783, and presided over the writing of...

's administration — especially Treasury Secretary

United States Secretary of the Treasury

The Secretary of the Treasury of the United States is the head of the United States Department of the Treasury, which is concerned with financial and monetary matters, and, until 2003, also with some issues of national security and defense. This position in the Federal Government of the United...

 Alexander Hamilton

Alexander Hamilton

Alexander Hamilton was a Founding Father, soldier, economist, political philosopher, one of America's first constitutional lawyers and the first United States Secretary of the Treasury...

's financial policies — prior to the formation of the Federalist

Federalist Party (United States)

The Federalist Party was the first American political party, from the early 1790s to 1816, the era of the First Party System, with remnants lasting into the 1820s. The Federalists controlled the federal government until 1801...

 and Democratic-Republican

Democratic-Republican Party (United States)

The Democratic-Republican Party or Republican Party was an American political party founded in the early 1790s by Thomas Jefferson and James Madison. Political scientists use the former name, while historians prefer the latter one; contemporaries generally called the party the "Republicans", along...

 Parties.

Almost the entire membership of the Pro-Administration "Party" was composed of future Federalists; the term Pro-Administration Party is also sometimes used to describe the supporters of the administration who did not join the Federalist Party after its formation. This was not an actual political party

Political party

A political party is a political organization that typically seeks to influence government policy, usually by nominating their own candidates and trying to seat them in political office. Parties participate in electoral campaigns, educational outreach or protest actions...

; rather, this is used as a catch-all for a variety of diverse political factions characterized by their belief in a robust federal administration.