Remember this too. It's not even that the GOP claims are unsubstantiated. They don't actually have any claims. They amount to just saying it just doesn't look right and mail in voting seems weird. Those aren't claims. The closest they come is this charge that GOP ...
2/ election observers were removed from the counting area. But that charge is one the campaign's lawyers have admitted in court is not true. There's no argument to have because they're not actually making any claims. Indeed, in their pressers they kept asking for "patience" ...
3/ so they can come up with some explanation of why they're not accepting that the President lost.
4/ Their only specific claim on the law is that ballots mailed before Election Day but received after election Election Day shouldn’t be allowed. That is a highly dubious and civically wrong argument. But it’s irrelevant since Trump lost without those votes being counted.