It’s Euro-mania in SW1. Always reliable for hard hitting analysis, Tory foghorn Louise Mensch summed up what she saw as her party’s position on the EU:

‘We want a Diet Coke version. A skinny latte. An EasyJet ticket. An IKEA flat-pack. Pain, vin, Boursin. You know. Just the basics.’

And who said a referendum would dumb down a complicated issue?

Those paid to walk the line are less happy though. One Tory spinner whispers to me:

‘We spend our entire lives defending one position, only to Cameron & Co to change their minds to the position we all suggested they had in the first place. It’s f**king amateurish.’

This ding-dong is almost as interesting as the tennis. Less civilised though…