Yes on Prop B v. City and County of San Francisco (3:20-cv-630) and San Franciscans Supporting Prop B v. Chiu (3:22-cv-2785) (Charles R. Breyer, N.D. Cal.)
A district judge held that campaign disclosures required as part of campaign materials for a ballot measure were unconstitutionally burdensome for short advertisements but not for longer advertisements.
Subject: Ballot measures. Topics: Campaign materials; ballot measure; case assignment.

One of many Case Studies in Emergency Election Litigation.