Lord Frost
Lord Frost also criticised Rishi Sunak's decision to "tilt to the left" of the Conservative Party.
Right-wing Conservatives believe the chancellor is not going far enough in cutting taxes.
Lord Frost has been condemned by numerous politicians from his own party.
“I don’t recognise this story at all," Steve Barclay said.
Nikki da Costa and David Frost criticised No10 over partygate and the national insurance rise.