Politics of Australia

The politics of Australia takes place within the framework of a federal parliamentary constitutional monarchy. Australians elect parliamentarians to the federal Parliament of Australia, a bicameral body which incorporates elements of the fused executive inherited from the Westminster system, and a strong federalist senate, adopted from the United States Congress. Australia largely operates as a two-party system in which voting is compulsory.

The Parliament of Australia, also known as the Commonwealth Parliament or Federal Parliament, is the legislative branch of the government of Australia. It is bicameral, and has been influenced both by the Westminster system and United States federalism. Under Section 1 of the Constitution of Australia, Parliament consists of three components: the Monarch, the Senate, and the House of Representatives. The Australian Parliament is the world's sixth oldest continuous democracy.

The Australian House of Representatives has 150 members, each elected for a flexible term of office not exceeding three years, to represent a single electoral division, commonly referred to as an electorate or seat. Voting within each electorate utilises the instant-runoff system of preferential voting, which has its origins in Australia. The party or coalition of parties which commands the confidence of a majority of members of the House of Representatives forms government.

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