I think they can get that stuff through the computers . I guarantee trump has some undeniable proof. He knew he would do this and go after his family after. There is no way he wasn’t having the elections monitored by some government agency. I’m sure he’s confident in the outcome.
He should have just left office instead of fighting the Russian collusion hoax if he was just going to let them steal the election. He called it and I’m sure President Trump is more then prepared. We knew which states were going to pull shenanigans so it would be be like they had to monitor the elections in all 50 states.