It's not. But when the challenge is proven to be wrong, with recounts, audits, etc, then you've lost!
Like Kari Lake. She has lost every recount, audit, and court cases because she does not have any proof of her claims! Same with trump! And you say the court didn't hear the proof? Show us what proof was presented! In a majority of trumps court cases, RudyG admitted he had theories, but no proof! If a judge can't see "your" proof, the case gets tossed!
Now, show us, and the courts, your proof!
Or cry.