Tory chairman Nadhim Zahawi is desperately clinging onto his job amid warnings that the row over his tax affairs has made his position "untenable".
Allies of the Cabinet Minister said he had no plans to quit despite paying a multi-million pound penalty to resolve a dispute with HMRC.
It has emerged that he made the settlement - estimated to be around £5million - when he was presiding over the UK's tax policy as Chancellor last summer.
