Guido understands the BBC has invited Nicola Sturgeon and Nigel Farage to take part in a head-to-head referendum debate in Glasgow. The hour-long face-off is due to take place on May 26 on BBC1 at 8pm. Audience members will be under 30 and representative of the whole of the UK rather than just Scotland. So Nige won’t have to barricade himself in a pub this time…

When Vote Leave secured the designation Farage worried his telly time would be reduced. This is a chance for the UKIP leader to take part in a prime-time head-to-head debate on the BBC, one he will want to seize given his hugely effective performance against Clegg two years ago. He then has his ITV Q&A session on June 7 to follow. He will be box office…

UPDATE: UKIP sources say Farage is still “considering options” on the TV debates. The SNP stress “At the moment no invitations to any EU debates have been accepted”.