South Dakota Libertarian Party v. Gant (Lawrence L. Piersol, D.S.D. 4:14-cv-4132)
A party’s nominee was disqualified because the nominee’s party change was not effective until it was received by the county auditor, after the nomination. The district judge denied the party and the nominee a preliminary injunction, because the minimal burden of requiring the party change before the nomination was justified by the state’s interest in maintaining party integrity.
Subject: Getting on the ballot. Topic: Getting on the ballot.

One of many Case Studies in Emergency Election Litigation.