Trump has a number of options to protect against that happening. The Dems are relying on subverting the law, and it won't work. The laws are completely in Trump's favor, and he knows they are. All that worry about him losing to fraudulent ballots or delayed counts is unnecessary. He hasn't revealed what he intends to do to safeguard them yet because it's in his favor to let the Dems continue to play out their plans.  Trump has a number of wild cards he could play at any time to change the entire scenario and disrupt whatever the Dems try to do. But he's still got time and the longer he holds out the better position he's in.