Fine. It is unlikely, even if fraud could be proven, that enough Democrats and Republicans from the House and Senate are going to vote to dismiss millions of votes.
But that is not the end of it. You see the 12th Amendment Constitution calls for a process of counting the votes but “The Senate and House of Representatives shall meet in the Hall of the House of Representatives at the hour of 1 o’clock in the afternoon on that day, and the President of the Senate shall be their presiding officer. Two tellers shall be previously appointed on the part of the Senate and two on the part of the House of Representatives, to whom shall be handed, as they are opened by the President of the Senate, all the certificates and papers purporting to be certificates of the electoral votes, which certificates and papers shall be opened, presented, and acted upon in the alphabetical order of the States, beginning with the letter A; and said tellers, having then read the same in the presence and hearing of the two Houses, shall make a list of the votes as they shall appear from the said certificates; and the votes having been ascertained and counted according to the rules in this subchapter provided, the result of the same shall be delivered to the President of the Senate, who shall thereupon announce the state of the vote, which announcement shall be deemed a sufficient declaration of the persons, if any, elected President and Vice President of the United States, and, together with a list of the votes, be entered on the Journals of the two Houses. it is not specific about how to do it,” it says.