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.
Federalist No. 66
Federalist Paper 66 was written by Alexander Hamilton who represented New York in the Congress under the Articles of Confederation and had served as a deputy from New York at the Constitutional Convention in 1787. It was titled "Objections to the Power of the Senate To Set as a Court for Impeachments Further Considered" and was published on March 8, 1788 in n the New York Independent Journal under the pseudonym Publius.