Labour runs a minority government in the Welsh Assembly under Carwyn Jones, is the largest opposition party in the Scottish Parliament and has twenty MEPs in the European Parliament, sitting in the Socialists and Democrats Group. The party also organises in Northern Ireland, but does not contest elections to the Northern Ireland Assembly. The Labour Party is a full member of the Party of European Socialists and Progressive Alliance, and holds observer status in the Socialist International. In September 2015, Jeremy Corbyn was elected Leader of the Labour Party.

Who runs the Welsh Assembly?