Lord Frost says he has ‘grave reservations’ about Penny Mordaunt becoming prime minister

Lord Frost has said he has “grave reservations” over Penny Mordaunt’s leadership ability, having worked with her during negotiations with the EU last year.

In a brutal attack on her credibility, the Brexit hardliner said Ms Mordaunt became such a “problem” that he was forced to ask Boris Johnson to dismiss her from talks.

“I’m sorry to say this, I felt she did not master the detail that was necessary when we were in negotiations,” Lord Frost told TalkTV.

“From the basis of what I saw, I’m afraid I would have grave reservations”.

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