Farage resigns from Parliament to force Clacton by-election

Nigel Farage resigned as a member of the U.K. Parliament on Tuesday, setting up a by-election in his Clacton constituency that the Reform UK leader said he would contest. The move comes as Parliament and British media examine financial support linked to Farage before and after his election in 2024.

Farage, a prominent figure on Britain’s populist right and an ally of U.S. President Donald Trump, said voters in Clacton should decide whether he remains their representative. In remarks in London, he described the coming contest as a “people versus the establishment” election and argued that parliamentary standards procedures were being used as “a political tool” against him.

Under Britain’s parliamentary system, the resignation of a sitting member creates a vacancy in that constituency. A by-election is then held to choose a replacement for that single seat, rather than to elect a national government. Farage said he would stand again in the vote triggered by his departure.

Scrutiny over financial support

Farage has been under investigation by the U.K. Parliament’s standards commissioner since May after he failed to declare a £5 million, or $6.7 million, gift from Christopher Harborne, a cryptocurrency investor and Reform UK donor, before entering Parliament in 2024.

The Sunday Times also reported at the weekend that Farage received financial backing from George Cottrell, a political ally. Cottrell was convicted of wire fraud in the United States in 2017, according to the report.

Farage rejected the criticism of his financial arrangements. He called the scrutiny an “establishment hit job” and said, “The establishment has now decided that they can’t beat us fairly... they have chosen to use foul means.”

The resignation places Farage’s personal mandate and Reform UK’s wider political momentum before voters in a local contest. By-elections can serve as tests of party strength between general elections, although their results do not by themselves determine control of the national government.

Trump link and Reform UK position

Trump appeared to signal support for Farage on Monday through a post on Truth Social. The post linked to an article headlined “They’re Running the 2024 Anti-Trump Playbook on Nigel Farage.”

The post followed recent suggestions of tension between the two political figures. Farage travelled to Mar-a-Lago in March but did not secure a meeting with Trump, according to CNBC.

Farage has led Reform UK since 2024, the year he won election to Parliament at the general election. CNBC reported that Reform UK has been ahead in most U.K. opinion polls since April 2025, a position that suggests it could compete strongly at the next general election, which must be held no later than Aug. 15, 2029.

Farage is best known internationally for his role in the campaign for Britain to leave the European Union. He previously served in the European Parliament and led the UK Independence Party from 2006 to 2009 and again from 2010 to 2016, stepping down after the Brexit referendum result.

This story draws on original reporting from CNBC.