Mr Farage has said the money was a ‘personal’ gift he received before deciding to stand for Parliament again

Sources say Nigel Farage became 'suspicious' that he had been compromised by 'foreign state actors' after the donation made by Christopher Harborne (pictured left) was made public.

Reform UK chief Nigel Farage faces a standards probe after it emerged he had been given £5million by a Thailand-based cryto billionaire - which he dubbed a "reward for campaigning…