He can do whatever he wants, MOnica providing that his MPs support him. He hasn't actually resigned as PM. He hasn't been asked to stay as a caretaker PM. He's just taking it upon himself.
There is also the matter of his plans for a big wedding anniversary party at Chequers... Story broken by the Mirror.
Is private entertaining of that sort permitted at Chequers or is it for 'official' entertaining?
Army horses loose on London streets
Last weekend, in Rutland, the first statue in Britain of the late Elizabeth II was unveiled.