Although Jeremy Corbyn did his best to press David Cameron on a range of issues at today's PMQs, perhaps the most notable aspect of his performance was what he didn't say. A number of commentators were surprised that the Labour leader did not ask Cameron to apologise for the extremism remarks he made about Sadiq Khan, who is now London's mayor.
Happily, one party leader was happy to put this to the Prime Minister -- even if they weren't best placed to ask it:
Tim Farron: I heard the Prime Minister on two occasions this afternoon congratulate the new Mayor of London Sadiq Khan -- and I would like to repeat that myself. He did not, however, apologise for the disgraceful racist campaign the Conservative party chose to run. Will he take the opportunity to apologise for deliberately dividing communities in order to win cheap votes?
David Cameron: It's a great way to end a session, getting a lesson in clean campaigning from the liberal democrats
It seems Cameron still remembers the Lib Dem's own 'dirty tricks' campaign when the party were accused of deploying 'false and exaggerated claims' and 'wicked' campaign tactics against the Tories in a bid to hold onto their seats.