"I hope the prime minister can get withdrawal through and then I do think we need to choose a new leader for a new generation with a new vision of a conservatism that can make sense of Brexit and reinspire and reunite the nation.

"I hope we can do that having secured a sensible withdrawal agreement. A panicked change of leader now will solve nothing, we have got to get this through.

"I hope colleagues this week will recognise that: vote for the deal and then we can change."