Labour now trotting out a half hearted line that J McD didn’t really mean what he said. So we haven’t shifted policy. Honest.
Simultaneously allowing them to admit and deny a policy shift if it’s convenient. Exactly the same strategy as “no Brexit at all”. Trotted out often enough without much reaction, until it becomes an accepted line.
I’m unsure how the blame game will work. Literally none of them wants this situation.