On June 21, Alaska candidate Tara Sweeney said she will not sue to reverse a decision of the Alaska Division of Elections that only three candidates will appear on the special general election for U.S. House. See this story. She would be the only likely plaintiff if such a lawsuit did materialize. She placed fifth, and because Al Gross withdrew, if anyone were to take his place on the ballot, it would have been her. Thanks to Fairvote for the link.
https://www.supremecourt.gov/opinions/21pdf/21-248_4fc5.pdf
SCOTUS NC intervention case – happens to be election law case