The prime minister was left stuttering after a grilling from the BBC Radio 2 presenter.
The prime minister was accused of a “breathtaking lack of self-awareness”.
Transport secretary Mark Harper was skewered over the prime minister's apparent deception.
The former prime minister joined David Cameron and George Osborne in attacking the decision.
The former prime minister said the decision to axe the Manchester leg of the line was "the wrong one".
The prime minister made the long-awaited announcement in his Tory conference speech.
The prime minister will announce he is axing the Birmingham to Manchester leg of the project later today.
The prime minister is expected to confirm the Manchester leg of the project will be axed in his Tory conference speech tomorrow.
ITV and Sky News have reported the decision has been taken to axe the next leg of the project.