Davis v. Johnson (2:14-cv-11818) and Moore v. Johnson (2:14-cv-11903) (Gershwin A. Drain and Matthew F. Leitman, E.D. Mich.)
Two cases challenged a requirement that ballot-petition signatures be collected by registered voters. One case concerned an election for a local school board, and the other case concerned election to Congress. Following recusal by the judge who was assigned the first case, the cases were assigned to a new judge who issued a preliminary injunction against the registration requirement for collectors of signatures, and the state elected not to appeal.
Subject: Getting on the ballot. Topics: Getting on the ballot; primary election; recusal; case assignment.

One of many Case Studies in Emergency Election Litigation.