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Plaid Cymru to form Welsh government, ending 27 years of Labour rule

Plaid Cymru to form Welsh government, ending 27 years of Labour rule

Rule Changes

Welsh nationalists win largest share of seats in restructured 96-member Senedd; First Minister Eluned Morgan loses her own seat

May 9th, 2026: Ap Iorwerth confirms minority government plan

Overview

Wales had a Labour-led government for every day of its 27-year devolved history. Voters ended that on Thursday, and on Saturday Plaid Cymru leader Rhun ap Iorwerth said his party would form the next one.

Plaid won 43 of 96 Senedd seats. It needs 49 for a majority, so ap Iorwerth said he will govern as a minority and build agreements deal by deal rather than enter a coalition. If the Senedd elects him First Minister, he will be the first Plaid politician to hold the office.

Why it matters

Wales gets a non-Labour government for the first time since devolution, and its first ever Plaid Cymru First Minister.

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Key Indicators

43 / 96
Plaid Cymru seats
Largest bloc in the new Senedd, six short of a majority.
27 years
Welsh Labour rule ended
Labour had led every Welsh government since devolution opened in 1999.
9 seats
Welsh Labour total
Down from 30 of 60 in the old chamber, with vote share falling to 11.1%.
34 seats
Reform UK breakthrough
First time Reform UK has won any Senedd seats; now the second-largest party.

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People Involved

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Timeline

November 1922 May 2026

10 events Latest: May 9th, 2026 · 1 month ago
Tap a bar to jump to that date
  1. Ap Iorwerth confirms minority government plan

    Latest Statement

    Plaid Cymru leader tells supporters at the Senedd he will seek to be First Minister and govern through case-by-case deals, not a coalition.

  2. Morgan loses seat; Labour vote collapses

    Election results

    Eluned Morgan finishes third in Ceredigion Penfro with 6,495 votes and resigns as Welsh Labour leader. Labour falls to nine seats.

  3. Plaid first; Reform UK second

    Election results

    Final returns show Plaid Cymru on 43 seats, Reform UK 34, Labour 9, Conservatives 7, Greens 2, Liberal Democrats 1.

  4. Senedd polls open under new system

    Election

    Welsh voters cast ballots under closed-list proportional representation for the first time. Turnout will reach 51.6%, the highest in devolution.

  5. Dan Thomas takes over Reform UK Wales

    Party leadership

    Reform UK names Thomas as its first Welsh leader, three months before the Senedd election.

  6. Eluned Morgan becomes First Minister

    Government formation

    Morgan replaces Vaughan Gething after his short tenure ends in a row over donations from a businessman convicted of environmental offences.

  7. Senedd expansion act passes

    Legislation

    The Senedd (Members and Elections) Act passes, raising the chamber to 96 members and replacing the old voting system with closed-list proportional representation.

  8. Labour and Plaid agree One Wales coalition

    Government formation

    Labour falls short of a majority and partners with Plaid Cymru. Plaid wins a deputy first ministership and a referendum on full lawmaking powers.

  9. Welsh devolution begins

    Constitutional

    The new National Assembly for Wales sits for the first time. Labour's Alun Michael leads the first devolved Welsh government.

  10. Labour first becomes largest party in Wales

    Historical

    Labour overtakes the Liberals in Wales at the 1922 general election, beginning a 104-year run as the country's biggest party.

Historical Context

3 moments from history that rhyme with this story — and how they unfolded.

May 2007 – May 2011

SNP minority government in Scotland (2007)

Alex Salmond's Scottish National Party won 47 of 129 Holyrood seats, one ahead of Labour. Salmond became Scotland's first nationalist First Minister and governed for four years without a coalition, building case-by-case majorities with the Greens and Conservatives.

Then

The SNP passed budgets and signature bills through bilateral deals after Labour and the Liberal Democrats refused coalition.

Now

The SNP won an outright majority in 2011 and called the 2014 independence referendum, locking Holyrood into a nationalist-versus-unionist axis.

Why this matters now

This is the model ap Iorwerth has signalled he will follow: nationalist plurality, no formal coalition, legislation built vote by vote.

July 2007 – May 2011

Labour-Plaid 'One Wales' coalition (2007)

Welsh Labour came three seats short of a majority in the 2007 Assembly election. After two months and a near-rainbow alternative involving Plaid, the Conservatives, and Liberal Democrats, First Minister Rhodri Morgan struck a coalition with Plaid leader Ieuan Wyn Jones. Plaid took the deputy first ministership and a commitment to a referendum on full lawmaking powers.

Then

The coalition delivered the 2011 referendum, which granted the Senedd primary lawmaking powers.

Now

Plaid lost ground at the 2011 election as the junior partner, a memory party strategists cite for refusing another coalition in 2026.

Why this matters now

The last time Welsh government formation was unsettled, Plaid joined as a junior partner and paid for it. Ap Iorwerth has chosen the opposite path.

November 1922

Wales realigns to Labour (1922)

At the 1922 UK general election, Labour overtook the Liberals to win the largest share of Welsh seats and votes. Industrial South Wales miners and steelworkers swung from Liberal to Labour, and Welsh Liberalism's century-long dominance ended.

Then

Labour locked down the South Wales coalfield and most urban seats within a decade.

Now

Wales remained Labour's most reliable nation through every UK general election from 1922 to 2024 and the entire devolved era until 2026.

Why this matters now

The 104-year run that started in 1922 ended on May 8, 2026. Plaid's win is the first realignment of Welsh politics on this scale in over a century.

Sources

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