USA
Democratic Party
Republican Party
Communist Party U.S.A.
Confederate Party
Constitution Action Party (CAP)
Creator's Rights Party
Democratic Socialists of America (DSA)
The Greens / Green Party USA
International Socialist Organization
Labor Party
Libertarian Party (LP)
National Party
Natural Law Party
New Party
New Union Party (NUP)
Pansexual Peace Party (PPP)
Patriot Party
Peace and Freedom Party (PFP)
Progressive Labor Party (PLP)
Reform Party
Social Democrats, USA
Socialist Party USA (SP)
U.S. Pacifist Party (USPP)
U.S. Taxpayers Party
V.A.M.P.S. Against Modern Political Systems (V.A.M.P.S.)
Workers Party, U.S.A.
Workers World Party