to members of a certain race, ethnic group, religion etc. American Freedom Party Black Riders Liberation Party National Socialist Movement New Afrikan Black Panther Party Also included in this category are various parties found in and confined to Native American reservations, almost all of which are solely devoted to the furthering of the tribes to which the reservations were assigned. An example of a particularly powerful tribal nationalist party is the Seneca Party that operates on the Seneca Nation of New York's reservations. Secessionist parties This section includes parties that primarily advocate for Independence from the United States. (Specific party platforms may range from left wing to right wing). Alaskan Independence Party Aloha ʻĀina Party (Hawaii) California National Party Single-issue/protest-oriented This section includes parties that primarily advocate single-issue politics (though they may have a more detailed platform) or may seek to attract protest votes rather than to mount serious political campaigns or advocacy. Grassroots—Legalize Cannabis Party Legal Marijuana Now Party Prohibition Party United States Marijuana Party State-only parties Approval Voting Party (Colorado) Natural Law Party (Michigan) New York State Right to Life Party Rent Is Too Damn High Party (New York) Notable elections A number of third party, independent, and write-in candidates have performed well in many U.S. elections. Greens, Libertarians, and others have elected state legislators and local officials. The Socialist Party elected hundreds of local officials in 169 cities in 33 states by 1912, including Milwaukee, Wisconsin; New Haven, Connecticut; Reading, Pennsylvania; and Schenectady, New York. There have been 20th century governors elected as independents, and from such parties as Progressive, Reform, Farmer-Labor, Populist, and Prohibition. There were others in the 19th century. However, the United States has had a two-party system for over a century. The winner take all system for presidential elections and the single-seat plurality voting system for Congressional elections have over time created the two-party system (see Duverger's law). Third-party candidates sometimes win elections. For example, such a candidate has won a U.S. Senate election twice (0.6%) since 1990. Sometimes a national officeholder not affiliated with and endorsed by one of the two major parties is elected. Previously, Senator Lisa Murkowski won re-election in 2010 as a write-in candidate and not as the Republican nominee, and Senator Joe Lieberman ran and won as a third-party candidate in 2006 after leaving the Democratic Party. Currently, there are only two U.S. Senators, Angus King and Bernie