Unique circumstances. Election issues at the national level go straight to the Supreme Court.

Something like this, where is it is a civil rights issue, would generally have to start in a state court or lower down the ranks in the federal system. And as backed up as that is,it might be years before anything moves. I don't know of anything that would block the Justices from inviting a case out of a lower court, but I can't think of any cases.