A leading United Kingdom lawmaker has asked the country’s top finance sector regulator to investigate Nigel Farage, leader of the right-wing Reform UK party, over a promotional video for Stack BTC in which the company said the controversial politician executed a £2 million ($2.7 million) BTC purchase on its behalf.

On Monday, Daisy Cooper, Deputy Leader of the Liberal Democrat party—one of the larger U.K. opposition parties—wrote to the Financial Conduct Authority (FCA) asking the…