Dr David Bull, who was unveiled as Zia Yusuf's replacement, also branded as 'prejudiced' comments that Mr Farage had made about HIV-infected migrants using the NHS.

A television presenter who made his name fronting a popular show about ghosts and the paranormal is to be unveiled tomorrow as Reform's new boss, the Mail can reveal.

The Reform leader confirmed the Mail's exclusive that Dr David Bull will replace Zia Yusuf as chairman to provide greater 'leadership' at a time of turmoil for the party.