Former chairman will run in next by-election at which party stands chance of winning

Richard Tice said Mr Yusuf had 'done a brilliant job in growing the party' and suggested he quit because of 'exhaustion' and working for 11 months 'without a day off'.

Reform leader has forgiven Zia Yusuf and the party appears to be back under control

Former party chair Zia Yusuf was out – then he was back in. But the chaos won’t dent the party’s poll ratings one tiny bit, says Guardian columnist Marina Hyde

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.

Former chairman will run in next by-election at which party stands chance of winning