Los Angeles Branch NAACP v. Los Angeles Unified School District

The NAACP (plaintiff) sued the school district (defendant) alleging intentional, de jure segregation, but a prior class action (Crawford) had already litigated segregation claims for events on or before May 2, 1969, ultimately resulting in a desegregation plan without mandatory busing after an appellate court found de jure segregation unestablished; the district court denied summary judgment on the defendants' res judicata argument, and the Ninth Circuit heard an interlocutory appeal.