Doesn't matter - he doesn't get to decide.Certainly he did not come across as a man ready to concede defeat.
As I've said before, what they spout in press conferences isn't worth a thing. Look at what they are willing to say in court - and all of the legal cases (30+) have been thrown out. And they specifically do not claim fraud in the cases.
Barr has even distanced himself at this stage - a number of the GOP senators have already. More will follow. He's turning into an old man shouting on the front lawn at this stage