What is Mr Luxon doing?

It should have been a good day for the National Party. Instead, it was derailed by the latest bit of riffing by Christopher Luxon, in declaring, prompted by a listener's text on Newstalk ZB, that he'd like a referendum next term on MMP. A big day for the CRL, for education and for decrying Labour saying it would nix Investment Boost, got lost in the debris. Annabelle Lee-Mather, Ben Thomas and…