Data notesUniform national swingGreat Britain only · NI modelled separatelySpeaker's seat held; by-election shifts not modelled
Scotland, Wales, Northern Ireland & London
Scotland 🏴SNP 58/129
Scottish Parliament
SNP minority government · John Swinney was re-elected First Minister on 20 May 2026, seven seats short of a majority, after ruling out talks with Reform UK. Labour and Reform tied for second on 17 seats each, and the Greens won their first-ever constituency seats.
Wales 🏴PC 43/96
Senedd (Welsh Parliament)
Plaid Cymru minority government · Rhun ap Iorwerth was elected First Minister on 12 May 2026 (44–34–7, with Green support; Labour and the Liberal Democrats abstained). It is the first non-Labour-led Welsh government since devolution began in 1999; outgoing First Minister Eluned Morgan lost her seat and resigned as Welsh Labour leader.
Northern Ireland SF 27/90
Northern Ireland Assembly
Power-sharing Executive functioning since 3 February 2024, when it was restored after a two-year DUP boycott · First Minister Michelle O'Neill (Sinn Féin), deputy First Minister Emma Little-Pengelly (DUP), Leader of the Opposition Matthew O'Toole (SDLP). Composition shown is the 2022 result adjusted for defections (UUP 9→8; two members now sit as Independent Unionists).
London Lab 11/25
Mayor of London & London Assembly
Sadiq Khan (Labour) won a third term in May 2024 with 43.8% under first-past-the-post; Labour also holds 11 of the Assembly's 25 seats. Siân Berry (Green) resigned days after the election and Zoë Garbett took her list seat · no change in party balance.