The Senate is the upper house of the bicameral Parliament of Australia, the lower house being the House of Representatives. The composition and powers of the Senate are established in Chapter I of the Constitution of Australia. There are a total of 76 senators: 12 are elected from each of the six Australian states regardless of population and 2 from each of the two autonomous internal Australian territories. Senators are popularly elected under the single transferable vote system of proportional representation.
In the Parliament of Australia, a casual vacancy arises when a member of either the Senate or the House of Representatives:
Dissolution of a legislative assembly is the mandatory simultaneous resignation of all of its members, in anticipation that a successive legislative assembly will reconvene later with possibly different members. In a democracy, the new assembly is chosen by a general election. Dissolution is distinct on the one hand from abolition of the assembly, and on the other hand from its adjournment or prorogation, or the ending of a legislative session, any of which begins a period of inactivity after which it is anticipated that the same members will reassemble. For example, the "second session of the fifth parliament" could be followed by the "third session of the fifth parliament" after a prorogation, but the "first session of the sixth parliament" after a dissolution.
The Senate of Pakistan or Aiwān-e-Bālā Pākistān, constitutionally the House of the Federation, is the upper house of the bicameral Parliament of Pakistan. As of 2023, It has a maximum membership of 100, of which 92 are elected by the provincial legislatures using single transferable vote. Four represent the Federal Capital and another four are representing former Federally Administered Tribal Areas, until membership expiration in 2024. Members sit for terms lasting six years, with half of the house up for election every three years. Unlike the National Assembly, the Senate is a continuing chamber and hence not subject to dissolution.
The National Assembly of Pakistan is the lower house of the bicameral Parliament of Pakistan, with the upper house being the Senate. As of 2023, the National Assembly has a maximum membership of 342, of which 266 are directly elected by an adult universal suffrage and a first-past-the-post system to represent their respective constituencies, while 70 are elected on reserved seats for women and religious minorities from all over the country and six on reserved seats for former Federally Administered Tribal Areas, and the members hold their seats for five years or until the house is dissolved by the President on the advice of the Prime Minister. The house convenes at the Parliament House, Red Zone, Islamabad.
Elections in Australia take place periodically to elect the legislature of the Commonwealth of Australia, as well as for each Australian state and territory and for local government councils. Elections in all jurisdictions follow similar principles, although there are minor variations between them. The elections for the Australian Parliament are held under the federal electoral system, which is uniform throughout the country, and the elections for state and territory Parliaments are held under the electoral system of each state and territory.
A double dissolution is a procedure permitted under the Australian Constitution to resolve deadlocks in the bicameral Parliament of Australia between the House of Representatives and the Senate. A double dissolution is the only circumstance in which the entire Senate can be dissolved.
The Australian referendum of 12 December 1906 approved an amendment to the Australian constitution related to the terms of office of federal senators. Technically it was a vote on the Constitution Alteration Bill 1906, which after being approved in the referendum received the royal assent on 3 April 1907. The amendment moved the date of the beginning of the term of members of the Senate from 1 January to 1 July so that elections to the federal House of Representatives and the Senate could occur simultaneously.
The Constitution Alteration Bill 1974, was an unsuccessful proposal to alter the Australian Constitution to require simultaneous elections for the House of Representatives and the Senate. It was put to voters for approval in a referendum held on 18 May 1974. Previous elections to the House of Representatives and the Senate had usually held simultaneously although this was a matter of convention rather than constitutional law. Election terms had lost synchronisation in the 1960s with separate half Senate elections in 1964, 1967 and 1970.
The Constitution Alteration Bill 1977, was a successful proposal to alter the Australian Constitution concerning the filling of casual vacancies in the Senate. It was put to voters for approval in a referendum held on 21 May 1977. After being approved in the referendum, it received the royal assent and became law on 29 July 1977.
The Constitution Alteration Bill 1984, was the third unsuccessful proposal to alter the Australian Constitution to require that Senate of Australia and House of Representatives elections be constitutionally enforced to occur on the same day. It was put to voters for approval in a referendum held on 1 December 1984.
The Senate was the upper house of the Parliament of South Africa between 1910 and its abolition from 1 January 1981, and between 1994 and 1997.
The 1910 Australian federal election was held in Australia on 13 April 1910. All 75 seats in the House of Representatives, and 18 of the 36 seats in the Senate were up for election. The incumbent Liberal Party led by Prime Minister Alfred Deakin was defeated by the opposition Australian Labor Party (ALP) led by Andrew Fisher.
Section 13 of the Constitution of Australia provides for three aspects of the terms of members of the Australian Senate: the timing of elections, the commencement date of their terms and for the Senate to allocate long (six-year) and short (three-year) terms following a double dissolution of the Parliament of Australia. While members of the House of Representatives and territory senators have a maximum three-year term, state senators have a fixed six-year term, subject only to the parliament being dissolved by a double dissolution.
Section 24 of the Constitution of Australia is titled "Constitution of House of Representatives". It provides that the House of Representatives be "directly chosen by the people of the Commonwealth" and have twice as many seats as the Senate. It also provides a formula for the number of seats in each state, subject to later amendment by the parliament, and guarantees at least five members for each original state.
Section 57 of the Constitution of Australia concerns how deadlocks between the two houses of the Commonwealth Parliament—the House of Representatives and the Senate—should be resolved. If the House of Representatives passes a bill that the Senate rejects, fails to pass, or proposes amendments that the House of Representatives will not agree to, and this repeats itself three months later with regards to the same bill, then the Governor-General can call a double dissolution of the Parliament, so long as the House of Representatives is not six months or less from its expiration.
Western Australia v Commonwealth, also known as the First Territory Senators' Case, was an important decision of the High Court of Australia concerning the procedure in section 57 of the Constitution and the representation of territories in the Senate. The Court unanimously held that legislation providing for the representation of the Northern Territory and the Australia Capital Territory in the Senate had been passed in accordance with section 57 of the Constitution and, by majority, that the representation of the territories was constitutionally valid.
The Constitution Alteration 1988 was an unsuccessful proposal put to referendum in the 1988 Australian referendum on 3 September 1988. It proposed to alter the Australian constitution so that both the House of Representatives and the Senate would be elected for a term of four years. This involved reducing the terms of the Senate from six years to four years, and increasing the terms of the House of Representatives from three years to four years. It also proposed for the fourth time that Senate and House elections occur simultaneously.
The Constitution Alteration Bill 1988, was an unsuccessful proposal to alter the Australian Constitution to enshrine the principle that each elector's vote should have equal value in Australia, also referred to as one vote, one value, including in states and territories. It was put to voters for approval in a referendum held on 3 September 1988.
The next Australian federal election will be held some time during or before 2025 to elect members of the 48th Parliament of Australia. All 150 seats in the House of Representatives and likely 40 of the 76 seats in the Senate will be contested. It is expected that at this election, the Labor government of Prime Minister Anthony Albanese will be seeking re-election to a second term in office, opposed by the Liberal/National Coalition under Leader of the Opposition Peter Dutton.
