Republicans have gone completely round the bend

Apparently, that's a thing.  You can sue directly in the Supreme Court.

There are three separate routes that cases follow to reach the Supreme Court. The first, and least common, is a case under the Court's "original jurisdiction". "Original jurisdiction" means that the Supreme Court hears the case directly, without the case going through an intermediate stage. The original jurisdiction is set forth in the United States Code. The Supreme Court has original and exclusive jurisdiction to hear disputes between different states -- meaning that no other federal court can hear such a dispute. An example of such a case is the 1998 case of State of New Jersey v. State of New York. In this case, the two states litigated the question of which state had jurisdiction over Ellis Island. "Original jurisdiction" cases are rare, with the Court hearing one or two cases each term.

  Southeast ADA Center

UPDATE:

George Conway comments.

Also...

Enter Paxton’s complaint. It makes a slew of audacious factual allegations that are unestablished and untested. Basically, he argues that the state defendants shouldn’t have allowed mail-in balloting the way they did, and cites “mysterious late night dumps of thousands of ballots at tabulation centers; illegally backdating thousands of ballots,” and videos of “poll workers erupting in cheers as poll challengers are removed from vote counting centers,” among an avalanche of other unsubstantiated and previously repudiated factual claims. (My favorite is the “expert analysis” that allegedly calculated the “probability of former Vice President Biden winning the popular vote in the four Defendant States” as “less than one in a quadrillion, or 1 in 1,000,000,000,000,000.”)

  The Bulwark