Sir Keir Starmer has announced a temporary ban on cryptocurrency donations to political parties following a government review into electoral interference – a move that will be a major blow to Nigel Farage’s Reform UK.

The government will also cap donations from British citizens living abroad who are still on the electoral register.

Sir Keir told MPs the review by Philip Rycroft, a former senior civil servant, set out the “stark threats posed by illicit finance” – and he hit out at Mr Farage, whose party has accepted a number of crypto donations.

In the last year,…