Philip Hammond has said he intends to resign as chancellor if Boris Johnson becomes UK PM.
Mr Hammond said a no-deal Brexit, something Mr Johnson has left open as an option, was “not something I could ever sign up to”.
Asked if he thought he would be sacked by the next PM, he said he would resign on Wednesday to Theresa May.
He told the BBC’s Andrew Marr he intends to quit after PMQs but before Mrs May officially steps down.
Mr Hammond said it was important the next PM and his chancellor were “closely aligned” on Brexit.