Additional member system in the context of "Mixed-member majoritarian representation"

There are five types of elections in the United Kingdom: elections to the House of Commons of the United Kingdom (commonly called 'general elections' when all seats are contested), elections to devolved parliaments and assemblies, local elections, mayoral elections, and Police and Crime Commissioner elections. Within each of those categories, there may also be by-elections. Elections are held on Election Day, which is conventionally a Thursday, and under the provisions of the Dissolution and Calling of Parliament Act 2022 the timing of general elections can be held at the discretion of the prime minister during any five-year period. All other types of elections are held after fixed periods, though early elections to the devolved assemblies and parliaments can occur in certain situations. The five electoral systems used are: the single member plurality system (first-past-the-post), the multi-member plurality, the single transferable vote, the additional member system, and the supplementary vote.

Elections are administered locally: in each lower-tier local authority, the polling procedure is operated by the returning officer or acting returning officer, and the compiling and maintenance of the electoral roll by the electoral registration officer (except in Northern Ireland, where the Electoral Office for Northern Ireland assumes both responsibilities). The Electoral Commission sets standards for and issues guidelines to returning officers and electoral registration officers, and is responsible for nationwide electoral administration (such as the registration of political parties and directing the administration of national referendums).

The 2011 Scottish Parliament election was held on Thursday, 5 May 2011 to elect 129 members to the Scottish Parliament.

The election delivered the first majority government since the opening of Holyrood, a remarkable feat as the Additional Member System used to elect MSPs was allegedly originally implemented to prevent any party achieving an overall parliamentary majority. The Scottish National Party (SNP) won a landslide of 69 seats, the most the party has ever held at either a Holyrood or Westminster election, allowing leader Alex Salmond to remain as First Minister of Scotland for a second term. The SNP gained 32 constituencies, twenty two from Scottish Labour, nine from the Scottish Liberal Democrats and one from the Scottish Conservatives. Such was the scale of their gains that, of the 73 constituencies in Scotland, only 20 came to be represented by MSPs of other political parties. Scottish Labour lost seven seats and suffered their worst election defeat in Scotland since 1931, with huge losses in their traditional Central Belt constituencies and for the first time having to rely on the regional lists to elect members within these areas. They did, however, remain the largest opposition party. Party leader Iain Gray announced his resignation following his party's disappointing result. The Scottish Liberal Democrats were soundly defeated; their popular vote share was cut in half and their seat total reduced from 16 to 5. Tavish Scott announced his resignation as party leader shortly after the election. For Scottish Conservatives, the election proved disappointing as their popular vote dropped slightly and their number of seats fell by 2, with party leader Annabel Goldie also announcing her resignation.

Monmouth (Welsh: Mynwy) is a constituency of the Senedd. It elects one Member of the Senedd by the first past the post method of election. It is also one of eight constituencies in the South Wales East electoral region, which elects four additional members (in addition to the eight constituency members) to produce a degree of proportional representation for the region as a whole.

Michael William Russell (born 9 August 1953) is a Scottish politician serving as Chairman of the Scottish Land Commission since 2024, having previously served in the Scottish Cabinet under Alex Salmond and Nicola Sturgeon. A member of the Scottish National Party (SNP), he was the Member of the Scottish Parliament (MSP) for Argyll and Bute from 2011 to 2021, and a list MSP for South of Scotland from 1999 to 2003 and 2007 to 2011.

Russell previously worked as a television producer and director and the author of seven books. He was Chief Executive of the SNP from 1994 to 1999 and was elected to the Scottish Parliament as a regional MSP for the South of Scotland at the first Scottish Parliament election in 1999. However, he lost his seat in the 2003 Scottish Parliament election. He was elected again in May 2007 and was appointed Minister for Environment in Scotland's first-ever SNP administration by First Minister Alex Salmond.