UKIP

The UK Independence Party was founded in 1993 by London School of Economics academic Alan Sked, initially as an anti-EU pressure group advocating British withdrawal from the European Community. Under Nigel Farage's leadership from 2006, UKIP transformed into a mass-membership populist party, winning the 2014 European Parliament elections with 27.5% of the vote and becoming the first party other than Labour or the Conservatives to win a UK-wide election in over a century.

Following the 2016 Brexit referendum victory, UKIP's core purpose was achieved and the party rapidly fragmented. Farage launched the Brexit Party in 2018 to contest European elections, effectively absorbing UKIP's support base; the Brexit Party rebranded as Reform UK in 2021. UKIP continued as a separate organisation under successive leaders but shed members, funding, and electoral credibility throughout this period. Caroline Jones, now a Welsh Senedd member for Reform UK, began her career as a UKIP MS.

UKIP's historical significance lies in forcing the 2016 referendum that reshaped British politics for a generation. As an active organisation it is now marginal, with Reform UK having absorbed its populist-right electoral Coalition. The party's trajectory illustrates how single-issue movements can achieve their objective and then face irrelevance, while the broader political energy they generate finds new institutional homes.