The prime minister had hoped for a rare gathering of all the surviving occupants of No 10, to mark 100 years since a UK leader first enjoyed staying at the lavish Buckinghamshire country home.
But Tony Blair and Gordon Brown turned down the offer of the reunion and it has now been confirmed that John Major and David Cameron have also said they are unable to attend.
It means Mrs May will be the only ex-prime minister at the celebration, making for an uncomfortable get-together for Mr Johnson with his predecessor. The last time the pair met at Chequers it prompted his resignation as foreign secretary from her Cabinet over her doomed Brexit proposals, in 2018.
So warmonger Blair, grey man Major, bankruptcy Brown and cowardly Cameron can’t go?
I would be cheering at that news personally because not one of them deserves celebrating, but then neither does malicious May or joker Johnson.