He basked in the glory of England’s performance in the Euros and tennis star Emma Raducanu. Well, the rest of us remember the government slamming players taking a knee - and would Radacanu’s family make it past Priti Patel’s new border regime?
Nick Robinson eventually lost his patience, telling the PM they should discuss "a range of subjects, not just one".
"Genius genius genius," wrote one fan.
"Does anybody really want to hear Carrie Johnson talk about LGBT rights? .... Nope didn't think so," Wrote on baffled Twitter user.
The prime minister admitted that it will be "incredibly tough" to increase rape prosecution rates - but denied austerity is to blame.
After being called out for false claims about wages, it also appears he got his MoJ and police recruitment numbers wrong.
Up to 120,000 animals may be culled on farms and incinerated due to a shortage of butchery and abattoir workers.
"You’ve said something that isn’t true, you’ve said something that isn’t true about wages," Andrew Marr said.
"Fortunately, the prime minister avoided a terrible fashion faux pas by remembering his jogging cufflinks."