A growing faction within the Labour Party is pressing for a comprehensive review of the United Kingdom’s electoral system, advocating for a shift towards proportional representation (PR). This push gained momentum recently when 98 Labour MPs, including some ministers, signed an amendment calling for the establishment of a national commission to explore electoral reform proposals.
Former Greater Manchester mayor Andy Burnham, a longtime proponent of devolving power to local government, has expressed sympathy for electoral reform. Since his first mayoral campaign under the supplementary vote system in 2017, Burnham has noted that encouraging voters to rank second preferences incentivised broader engagement. Last year, he publicly supported adopting proportional representation for Westminster elections, emphasizing that any change should be clearly presented in a party manifesto and sanctioned through a general election. During the Makerfield by-election campaign, he reaffirmed this stance.
Supporters of PR argue that it produces election outcomes that more closely reflect popular vote shares. Currently, the first-past-the-post system used in UK general elections often results in parties winning disproportionate numbers of seats relative to their vote percentages. Proponents suggest that the emergence of a prime minister favorable to PR and the possibility of a progressive coalition government in the next parliamentary term present a unique opportunity for meaningful reform. If Labour, alongside the Liberal Democrats and Greens, include PR in their manifestos and secure a majority of votes, electoral reform could be achieved through democratic consensus.
However, some analysts urge caution, highlighting potential drawbacks to such changes. While PR systems promote closer alignment between vote share and seat allocation, they do not necessarily guarantee proportional influence over government power. Instances such as the Democratic Unionist Party’s (DUP) veto power during Theresa May’s minority government via a confidence and supply agreement, and the Scottish Greens’ significant sway within the SNP-led government in Holyrood, illustrate that small parties in coalitions can wield outsized influence. Consequently, proportional systems may produce power imbalances as significant as those seen under first-past-the-post.
Critics also question whether a shift to PR would enhance public trust and legitimacy in the electoral process. The first-past-the-post system has historically been effective in societies dominated by two main parties, enabling governments to be held accountable and replaced at the ballot box. However, as voter preferences diversify across multiple parties and issues become less tethered to traditional left-right economic divides, first-past-the-post outcomes have become less predictable, occasionally electing representatives supported by minority vote shares. Surveys indicate a majority of the public now favour some form of reform, though it remains a low priority issue amid broader concerns over political efficacy.
Additional risks cited include the potential for increased political fragmentation and polarization. Smaller parties targeting niche electorates may gain a disproportionate role in coalition negotiations, provoking questions about the acceptability of fringe parties exerting influence over national governance. Politicians such as Nigel Farage have previously endorsed PR in response to perceived underrepresentation of certain parties, though his recent silence amid improved polling for Reform UK suggests strategic recalibration. Observers warn that any reform could be exploited by anti-establishment figures seeking to amplify their profile.
Some commentators advocate incremental reforms like the alternative vote (AV) system, which permits ranking of candidates without fully adopting proportional representation. AV, used in certain past referenda and elections, encourages candidates to appeal beyond their core supporters and allows voters to express honest preferences without tactical voting.
Ultimately, while proponents see electoral reform as a path to fairer representation, experts suggest that restoring confidence in politics may hinge more critically on governments delivering tangible policy outcomes, such as economic growth and improvements in social care, rather than altering the electoral framework. The balance between fair representation, political stability, and public trust remains at the heart of ongoing debates over the future of UK elections.