Actually, it's up to the Electoral College to rule on it, confirming the votes for Biden. Then a joint session of Congress formally declares him the winner.
It's really quite un-American of you to be so ill informed as to how the voting process works. The Supreme Court won't take up the case, and literally every other court has dismissed or thrown out Trumps cases, because Diaper Don's lawyers have to admit under oath that they have NO EVIDENCE OF FRAUD, ILLEGAL VOTES, BALLOT-TOSSING or any other horsehockey that Demented Don spews after three rails of Adderall.
