GettyKen Clarke has savaged Boris Johnson over his attitude towards Theresa May
The Tory grandee also launched a blistering attack on the Foreign Secretary branding him an “irrelevant nusisance.”
And he exposed the divisions and cracks opening up in the party, which Theresa May will attempt to smooth over during a Brexit speech in Florence on Friday.
Mr Clarke, who was Secretary of State for Health under Margaret Thatcher’s government, and Chancellor of the Exchequer under Prime Minister John Major had words of advice for Boris Johnson.
He blasted that he must stop "exploiting" Theresa May's weakened position and stop "sounding off" over Brexit.Related articles
Asked what the PM should do about Mr Johnson, Mr Clarke replied: "They should tell him, if he wants to be Foreign Secretary he should actually make some more serious contributions on wider foreign policy, give his views on the Brexit deal privately - as ministers have always been supposed to do - remember there are rules called collective responsibility."
Mr Clarke said that in any normal circumstances the Prime Minister would have sacked Mr Johnson hours after publishing his 4,000-word personal vision for Brexit.
But the Conservative former chancellor added that Mrs May's lack of a parliamentary majority meant she could not easily dispose of Mr Johnson, who was advised to express his Brexit views in private.
GettyThe Tory grandee said the Foreign Secretary was an “irrelevant nuisance”
He added enough has been said about Mr Johnson's contribution, which he regarded as a repeat of "one of the more simplistic and dishonest