From Wikipedia: New York Post, History

Newspapers and political parties developed together.

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The Post was founded by Alexander Hamilton with about US$10,000 (equivalent to $162,860 in 2021) from a group of investors in the autumn of 1801 as the New-York Evening Post, a broadsheet. Hamilton's co-investors included other New York members of the Federalist Party, such as Robert Troup and Oliver Wolcott, who were dismayed by the election of Thomas Jefferson as U.S. president and the rise in popularity of the Democratic-Republican Party. The meeting at which Hamilton first recruited investors for the new paper took place in Archibald Gracie's then-country weekend villa that is now Gracie Mansion. Hamilton chose William Coleman as his first editor.



- The editor: William Coleman.

William Coleman (February 14, 1766 – July 13, 1829) was the first editor of The New York Evening Post (today known as the New York Post), chosen by founder Alexander Hamilton. Coleman was born in Boston, Massachusetts on February 14, 1766. He studied law with Joshua Atherton of Amherst, New Hampshire, where his fellow students included William Plumer, who remained a lifelong friend. Coleman was admitted to the bar, and moved to Greenfield, Massachusetts, where he became the town's first lawyer and co-founder of the Impartial Intelligencer newspaper, now known as The Greenfield Recorder. He moved to New York City around 1794 and practiced law at one point with Aaron Burr. In 1801, he began The New York Evening Post, and he served as editor of the paper from 1801 to 1829.

Also: 

- Gazette of the United States.

The Gazette of the United States was an early American newspaper, first issued semiweekly in New York on April 15, 1789, but moving the next year to Philadelphia when the nation's capital moved there the next year.[1] It was friendly to the Federalist Party. Its founder, John Fenno, intended it to unify the country under its new government. As the leading Federalist newspaper of its time, it praised the Washington and Adams administrations and their policies. Its Federalist sponsors, chiefly Alexander Hamilton, granted it substantial funding; because some of it was directly from the government, the Gazette is considered to have been semi-official. The influence of the newspaper inspired the creation of the National Gazette and the Philadelphia Aurora, rival newspapers for the Democratic-Republicans.

- John Fenno.

Having previously written for the Massachusetts Centinel,[5] Fenno on April 11, 1789 in New York City published the first issue of the Gazette of the United States to support Federalist Party positions. Fenno moved it to Philadelphia when the national capital moved there in 1790.

As opposing factions, centered on Alexander Hamilton and Thomas Jefferson, developed within President Washington's administration, political newspapers such as the Gazette became increasingly important. Fenno's little three-column folio, printed on a sheet seventeen by twenty-one inches, became the semi-official government newspaper, with a share of the government's printing and with contributions from prominent Federalists such as John Adams. Hamilton was especially active, writing articles under various pseudonyms and rescuing the editor from bankruptcy in 1793 by raising $2,000 to pay off creditors.

Jefferson and his colleagues, angry at Fenno's attempt "to make way for a king, lords, and Commons" set up rival newspapers, the Aurora edited by Benjamin F. Bache and the National Gazette edited by Philip Freneau, to promote the newly formed Democratic-Republican Party. As a highly visible Federalist spokesman, Fenno was engaged in verbal disputes that once led to fisticuffs with Bache. The tone of the Gazette of the United States was somewhat above the average of its contemporaries, and the Federalists were well served through its columns, although the circulation never exceeded 1,400. Copies circulated to major cities where other Federalist newspapers freely copied the news and editorials.