There are two major political parties in the United States government, Democrats and Republicans, making the country a two-party system. This is a list of political parties in the United States, both past and present. Two political groups dominate the Australian political spectrum, forming a de facto two-party system. It does not …  The present Liberal Party was formed in 1944. Four political parties merge in Kayin State Chan Thar 06 Feb 2018 Foure Kayin-based political parties have merged to establish the Karen National Democratic Party (KNDP), which has registered with the Union Election Commission (UEC), officials of the parties have told The Myanmar Times . Canadian Political Parties Canadians have plenty of opinions about politics, so it should come as no surprise that the country is home to many political parties. United States - United States - Political parties: The United States has two major national political parties, the Democratic Party and the Republican Party. The four roles of political parties are: selecting candidates to run for office, keeping the other political parties in check, keeping the public informed on issues, and organizing the government. History. With at least four different national parties and even more at the provincial level, it can sometimes be a bit of a challenge to keep track of them all. One is the Australian Labor Party (ALP), a centre-left party which is formally linked to the Australian labour movement.Formed in 1893, it has been a major party federally since 1901, and has been one of the two major parties since the 1910 federal election. Although the parties contest presidential elections every four years and have national party organizations, between elections they are often little more than loose alliances of state and local party organizations. There are three main parties represented in the House of Representatives—the Australian Labor Party, the Liberal Party of Australia, and the Nationals. The Labor Party is Australia’s oldest political party, established federally in 1901.