Ó Ríordáin's Merger Call Puts Labour and Greens on the Spot as Left Searches for a Path Back to Relevance
Labour MEP Aodhán Ó Ríordáin has publicly called for the Irish Labour Party and the Green Party to merge into a single progressive force, pointing to the recent formation of Progressief Nederland in the Netherlands — where the Dutch Labour and Green parties combined following a period of electoral underperformance — as a potential template for the Irish left, in a move that has caught Labour leader Ivana Bacik off guard and reignited a debate about the future of progressive politics in Ireland.
Background
The Irish Labour Party and the Green Party occupy adjacent but distinct positions on the Irish political spectrum. Labour, founded in 1912, is the oldest party in the state and has historically been the primary vehicle for social democratic politics in Ireland, though its electoral fortunes have fluctuated dramatically. The party's participation in coalition government with Fine Gael from 2011 to 2016 — during which it implemented a programme of austerity that many of its supporters found deeply uncomfortable — resulted in a catastrophic electoral collapse from which it has only partially recovered.
The Green Party, which has been in government with Fianna Fáil and Fine Gael since 2020, has similarly struggled to translate its policy achievements — including the Climate Action Plan and the carbon tax escalator — into electoral support. The party's vote share has declined significantly since the 2020 general election, and it faces the prospect of further losses in the 2027 local and European elections.
Both parties currently poll at approximately 4% in The Irish Times polling, a figure that reflects their shared challenge of carving out a distinctive identity in a political landscape dominated by the three larger parties — Sinn Féin, Fianna Fáil, and Fine Gael — and the growing presence of smaller left-wing parties and independents. The question of whether the two parties would be stronger together than apart has been discussed informally for years, but Ó Ríordáin's public intervention has brought it into the open in a way that demands a response.
Key Developments
Ó Ríordáin made his proposal at an event hosted by the Institute of International and European Affairs on September 18, pointing to the formation of Progressief Nederland as evidence that such a merger can work in practice. The Dutch parties, which had both suffered significant electoral losses, combined their memberships, structures, and policy platforms to create a new entity that has subsequently performed better than either party did individually.
The proposal was made without prior consultation with Labour leader Ivana Bacik, who was visibly surprised by the intervention. Bacik has previously indicated that a merger with the Social Democrats was "possible" due to a lack of ideological differences between the two parties, but that suggestion has been explicitly ruled out by Social Democrats leader Holly Cairns. The Green Party has not formally responded to Ó Ríordáin's proposal, but sources within the party indicated that it would be discussed at the next meeting of the party's executive.
Labour currently holds 11 seats in the Dáil, while the Green Party holds one — a disparity that would make any merger negotiation complex, as the smaller party would inevitably be absorbed rather than genuinely merged. Ó Ríordáin acknowledged this difficulty but argued that the alternative — two parties competing for the same pool of progressive voters — was worse for both.
Why It Matters
The debate about a Labour-Green merger is ultimately a debate about the future of progressive politics in Ireland. The Irish left has historically been fragmented, with multiple parties and groupings competing for a relatively small share of the vote, while the centre-right parties — Fianna Fáil and Fine Gael — have dominated government for most of the state's history. Sinn Féin's emergence as the largest party in the state has complicated this picture, but it has not resolved the underlying question of whether there is space for a coherent social democratic alternative to the nationalist left.
The Dutch example is instructive but not directly transferable. The Netherlands has a proportional representation system that rewards smaller parties more generously than Ireland's single transferable vote system, and the political cultures of the two countries are sufficiently different that lessons from one cannot be applied mechanically to the other. What the Dutch case does demonstrate is that merger is possible and that it can produce a party that is more than the sum of its parts — but only if the process is managed carefully and the resulting entity has a clear and distinctive identity.
For Irish voters who are broadly sympathetic to progressive politics but have been reluctant to support either Labour or the Greens in recent elections, the prospect of a merged party might be attractive — or it might simply produce a larger version of the same problem.
Local Impact
The merger debate will play out primarily at the national level, but it has implications for constituency politics across Ireland. In Dublin constituencies where Labour and Green candidates have historically competed for the same transfers, a merged party could potentially consolidate that vote and win seats that neither party could win individually. In rural constituencies, where both parties have struggled to establish a presence, the calculus is less clear. Local councillors from both parties — who would be most directly affected by any merger — have expressed a range of views, from cautious openness to outright opposition. The Labour Party's annual conference, scheduled for November, is likely to provide the first formal opportunity for members to debate the proposal.
What's Next
Ivana Bacik has indicated that she will discuss Ó Ríordáin's proposal with the Labour Party's parliamentary party and executive before making a formal response. The Green Party's executive is expected to consider the proposal at its next meeting. Any formal merger process would require the approval of both parties' memberships at special conferences, a process that could take many months. In the meantime, the proposal has succeeded in generating a debate about the future of the Irish left that is likely to continue well into 2027.
