First Minister Eluned Morgan lost her Senedd seat Friday during an election that ended Labour's century-long dominance in Wales [1].

The result marks a historic shift in Welsh governance, as Plaid Cymru emerged as the largest party in the Senedd [2]. This transition disrupts a political era defined by Labour's continuous control of the Welsh parliament for 104 years [1].

Rhun ap Iorwerth, the leader of Plaid Cymru, said his party is ready to form the next Welsh government [3]. He described his vision for the future as "hope over division, credibility over chaos and progress over stagnation" [4]. Iorwerth said, "I am ready to run the Welsh government" [5].

The electoral shift was driven by a surge in support for Plaid Cymru and Reform UK [6]. These movements successfully drew votes away from the Labour party, leading to the defeat of the First Minister in her own seat [2].

While the results in Wales signal a significant blow to the party, UK Prime Minister Sir Keir Starmer (Labour) remained resolute regarding his own position. Starmer said, "I'm not going to walk away" [7].

The election on May 8, 2026, transforms the legislative landscape in Wales [1]. Plaid Cymru now holds the primary mandate to lead, though the presence of Reform UK suggests a more fragmented political environment than the previous Labour-led era [6].

“I am ready to run the Welsh government”

The end of a 104-year winning streak for Labour suggests a fundamental realignment of the Welsh electorate. By shifting from a century of single-party dominance to a Plaid Cymru-led mandate, Wales may move toward policies more focused on national identity and autonomy, while the rise of Reform UK indicates a growing appetite for right-wing populism within the Senedd.