The Foreign Secretary’s name as been at the centre of attempts to oust Mrs May from Downing Street after she suffered a tough conference speech at the hands of a prankster and ill health.
Mr Johnson was pictured being told to stand and applaud the Prime Minister’s by Home Secretary Amber Rudd only adding to the speculation of a potential leadership challenge.
On Wednesday, during a heated PMQs session, Mr Johnson once again appeared at odds with Mrs May as she prepared to fend off demands for a second Brexit vote from the Scottish National Party.
While the Prime Minister answered a question from fellow Conservative MP Heidi Allen on her fears over Universal Credit, Mr Johnson rubbed his face as he looked to switch off from Mrs May’s response.
Looking frustrated, Mr Johnson sits with his head rested on his hand as he avoids looking toward the Prime Minister through her minute-long response to Ms Allen.
However, the Foreign Secretary seemed to cheer up slightly after the Prime Minister swiftly slapped down SNP demands for a second Brexit referendum.
The SNP’s leader in Westminster, Ian Blackford, said: “If there was another EU referendum now I know how I would vote to remain. Why hasn’t the Prime Minister been straightforward about how she would vote?”
Mrs May fired back: “Let’s be clear – there is no second referendum.
“The people of the United Kingdom voted and we will be leaving the EU in March 2019.Parliament erupted with cheers and jeers with one MP shouting: “You might want one, we don’t.”
Parliament erupted with cheers and jeers with one MP shouting: “You might want one, we don’t.”
Mr Blackford tried to continue the attack, adding: “The Prime Minister can’t answer a simple question because she’s hamstrung by the parliamentary majority and a divided party of right-wing Brexiteers.”
He went on to say the Scottish economy was at risk of losing 80,000 jobs and £2,000 per person if Britain left the single market and customs union.
But Mrs May said: “Now is the time for the SNP leadership to recognise that to save jobs in Scotland they need Scotland to remain part of the UK.”
Mr Johnson signalled his approval toward the comments with several nods of the head.