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. 1
Federalist No. 1 introduces a series of essays published in the "Independent Journal", the "New-York Packet", and the "Daily Advertiser" as a response to Anti-Federalist opposition to the proposed US Constitution. After the Constitutional Convention of 1787, the new Constitution was sent to the various states for ratification in September 1787. Anti-Federalists essays condemning the document began to surface later that month, quickly followed by the Federalist efforts of Alexander Hamilton, James Madison, and John Jay.