List of political parties in Tross

This article lists political parties in Tross.

History
The first political parties in Tross emerged in the middle of the 19th century as spiritual successors of historic factions. The Liberal Party emerged in the wake of the 1853 constitutional revision as a group of members of the Chamber of Commons who shared a commitment to this new constitutional settlement, and a desire to continue the process of gradual democratisation. Opposition to the Liberals remained divided by ideological differences and personal rivalries until it coalesced into the Conservative Party in the 1880s under the leadership of Giovanni Rigonat. The Conservatives adopted support for democratisation and sought to mobilise voters to socially conservative ends, including the defence of the position of the Church of Tross against Liberal secularism. To this end, the Conservative Party came to adopt many of the elements of a modern political party, including a common manifesto for parliamentary candidates and an extraparliamentary fee-paying membership.

The two-party system remained stable until the early 1900s, when expanding suffrage led to the rise of the Social Democratic Workers' Party (SAP/PSL). The Riots of 1917 culminated in the granting of universal suffrage and the introduction of. This compromise split the SAP/PSL in two. The more moderate, social democratic, pro-compromise faction would become the Labourers' Party, while the more radical, communist, anti-compromise faction transformed into the Communard League. Voters in the newly enfranchised Hinterland, meanwhile, founded the Hinterland League. The first elections held in this new pluralistic system resulted in a Labourers' plurality and a left-wing majority by 1922. This prompted the Liberal and Conservative parties to form the Liberal/Conservative Alliance and contest elections under a united banner. A progressive faction of the Liberal Party, more sympathetic to the Labourers' Party than to the Conservatives, subsequently split from their party to found the Democratic Party. The Alliance formally merged into a single party named the Liberal Union in 1932.

More recent additions to the party system include the Green Party, founded in 1981, and the People's Party, founded 2017. The Green Party has grown to be the largest party in the Chamber of Commons, displacing the Labourers' Party as the main party on the left. The Liberal Union, meanwhile, maintain their dominant position on the left, forming a broad church that includes conservatives and liberals.