The prime minister has had oxygen support today. He has been moved to intensive care in case he needs to be on a ventilator. As for @DominicRaab, he won’t be called temporary PM, but that is what he will be, to all intents and purposes.

This is the kind of story where it is hard to find the right words. The bald facts are profoundly upsetting. But to state the obvious, all of us desperately hope @BorisJohnson makes a rapid and full recovery.