United States presidential primary
There is no provision for the role of political parties in the United States Constitution, since the Founding Fathers did not originally intend for American politics to be partisan. In Federalist Papers No. 9 and No. 10, Alexander Hamilton and James Madison, respectively, wrote specifically about the dangers of domestic political factions. Thus in the first two presidential elections, the Electoral College handled the nominations and elections in 1789 and 1792 that selected George Washington. The beginnings of the American two-party system then emerged from Washington's immediate circle of advisors. Hamilton and Madison, who wrote the aforementioned Federalist Papers against political factions, ended up being the core leaders in this partisanship: Hamilton became the leader of Federalist Party while Madison co-helmed the Democratic-Republican Party with Thomas Jefferson.
Federal Farmer
Accepting that Lee did not write the pamphlet raises the question of who did. Wood asserts that the authorship of the pamphlets is a mystery that will probably never be solved, though he believes it probable that they were produced by a New York resident. Robert Webking argues that Melancton Smith was probably the author. Webking finds deep similarities between Smith's speeches at the New York ratifying convention and the Federal Farmer. Furthermore, a computational analysis of Smith's writings and speeches done by John Burrows found that Lee's authorship "found no support at all" and Smith was the most likely author. Smith, a New York lawyer, was one of the Anti-Federalist leaders at the New York convention, though he eventually voted for the Constitution. Webking speculates that Smith might have kept his authorship of the Federal Farmer pamphlets a close secret so as not to jeopardize his future as a politician in heavily Federalist New York City.