Reform UK, the far-right political party, has received a £36 million donation from a British cryptocurrency billionaire, a record for a UK political party.
In the Daily Telegraph, Ben Delo shared that he was making the generous move for a "fair fight and a level playing field".
The sum is the biggest single donation ever given to a political party in the UK.
Reacting to the donation, the Party leader Nigel Farage said he was "honoured and humbled" by the gift.
The move came as Reform is facing scrutiny over its finances, with the government seeking to limit the amount that can be donated to UK political parties from British expats.
Delo said he was donating £1 million a month between now and the latest date Labour could call a general election in 2029, but that he would give all the money up front in case the government tried to limit mega-donations in future.
There are currently no restrictions on the amount of money UK-based donors can give to political parties.
However, Labour previously introduced a £100,000 cap on donations from British citizens who are living overseas and plan to introduce one for those who have recently returned to the UK.
Sheffield-born Delo, who has already donated £4 million to Reform, has previously said he will move back to the UK from Hong Kong to continue his backing for the party.
Last year, Delo was given an unconditional pardon by US President Donald Trump over a breach of anti-money laundering laws at his crypto trading platform, BitMEX, to which he had pleaded guilty in 2022.