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MarketsFinancial TimesJun 21, 2026· 2 min read

Reform UK's By-Election Performance Signals Intra-Right Dynamics

Recent by-election results indicate Reform UK is siphoning votes from the Conservative Party, particularly in Makerfield and Aberdeen North. This fragmentation of the right-wing vote could significantly impact the upcoming general election, potentially aiding Labour and influencing future economic policy.

Recent by-election results in Makerfield and Aberdeen offer insights into the evolving landscape of the UK's right-wing political spectrum, particularly concerning Reform UK's impact. While the party secured 15.6% of the vote in Makerfield and 9.4% in Aberdeen North, these outcomes underscore the complex electoral challenges it faces in translating rising national poll numbers into tangible parliamentary representation. In Makerfield, the Conservative candidate's vote share decreased by 26 percentage points from the 2019 general election, while Reform UK gained 14.5 points. Similarly, in Aberdeen North, the Conservative vote share fell by 13.9 points, with Reform UK increasing its share by 6.7 points. The economic implications of these results are multifaceted. Reform UK's strategy of attracting traditional Conservative voters, particularly those disaffected by current government policy, has the potential to fragment the right-wing vote. This fragmentation could lead to a greater number of seats for the Labour Party, potentially influencing future fiscal policy, regulatory environments, and economic priorities. A strong Labour mandate, if enabled by a divided right, could usher in changes to taxation, public spending, and industrial policy that diverge significantly from the current Conservative trajectory. For businesses and investors, this electoral dynamic introduces an additional layer of uncertainty regarding the policy environment post-general election. Furthermore, Reform UK's performance, while not directly winning seats, demonstrates its capacity to act as a significant spoiler. The by-election data suggests a substantial transfer of votes from the Conservatives to Reform UK in these specific contests. This trend, if replicated nationwide in a general election, would complicate the electoral calculus for the Conservative Party and could force a recalibration of their policy platform to win back voters. The economic platforms of both parties, particularly on issues like taxation, immigration, and trade, will be scrutinized as they vie for influence, with potential ramifications for labour markets, public finances, and international trade relationships.

Analyst's Take

The market appears to be underpricing the long-term impact of this intra-right dynamic on the UK's fiscal trajectory. Should Reform UK continue to act as a spoiler, a larger Labour majority could enable more aggressive public spending and tax adjustments sooner than currently anticipated, potentially widening bond spreads as fiscal sustainability concerns grow.

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Source: Financial Times