The latest YouGov poll was done well before today's 'defeated' pool interview with Beth Rigby for Sky and all the other broadcasters. The verdict from across the press and much of the politicals and commentators of all colours was 'end game'!

64% of Britons now think Johnson should stand down, up from 48% in November

Should remain: 20% (-11)
Should stand down: 64% (+16)

I think he could still wriggle out of this - but the wriggle room is shrinking very fast!