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.
Anti-Federalist Papers
Following its victory against the British in the Revolutionary War, the United States was plagued by a variety of internal problems. The weak central government could not raise taxes to cover war debts and was largely unable to pass legislation. Many early American politicians and thinkers believed that these issues were the result of the Articles of Confederation - the first governing document of the United States. In 1787 a convention gathered in Philadelphia to attempt to amend it. Soon, however, the gathering shifted its focus to constructing a newer and more powerful Constitution for the fledgling country. Two main competing factions emerged, the Federalists and the anti-Federalists. The former supported a more powerful central government while the latter opposed it.