It's time to call the race. The delay just convinces conspiracy minded folks Trump's not lying.
If Trump has any evidence of the fraud he's been claiming for 4 years -- and already deployed a commission to investigate between 2016 and 2018 -- he can present it.
But he's lost the election, and it's time to call it.
I don't call 4 days of letting the votes count out hardly a delay. Biden came out of election night with WI, MI, PA looking promising and GA a shot in the dark. PA he was down 690,000 votes, definitely a wide enough margin to create uncertainty.
Where it is right now with Biden up and trending in PA, GA, NV, AZ the big thing to look at is where the margins are. If he wins a state by less than 2,500 there are firm grounds for a recount in that state. Up 10,000 votes and you have what I would consider a "sizable" margin.
In PA Biden has sailed well beyond that number with 28k votes and it looks likely that margin will be north of 50,000. Even in Georgia a place where Biden campaign thought was a coin flip going into Thursday is now up for Biden over 7,500. Georgia was not even discussed to be in play on election night.
Election is in the bag (a legal bag) for Biden. I wasn't sure until about 12pm on election night after the direction of WI and MI were becoming more clear. Hillary didn't scratch it out a victory last time and it would be tough for Trump to do it twice.