"If there was absolutely nothing wrong with this extraordinary donation, why was it apparently treated with such secrecy that only four people supposedly knew about it?"

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…