In Cajune v. Indep. School. Dist. 194, decided today by the Eighth Circuit, plaintiffs sued to challenge the School District's permission for some teachers to put up Black Lives Matter posters in classrooms (but not for members of the public to display other posters, such as All Lives Matter or Blue Lives Matter posters). The court, in an opinion by Judge Raymond Gruender, joined by Judges Bobby Shepherd and Steven Grasz, held that the plaintiffs stated a First Amendment claim: Plaintiffs had sufficiently alleged that the government was allowing private speech (which means the government generally can't discriminate based on viewpoint), rather than engage in government speech (where the government can select the viewpoints it conveys):
"The Free Speech Clause restricts government regulation of private speech; it does not regulate government speech." "When the government wishes to state an opinion, to speak for the community, to formulate policies, or to implement programs, it naturally chooses what to say and what not to say."
The Constitution "relies first and foremost on the ballot box, not on rules against viewpoint discrimination, to check the government when it speaks." In some situations, difficulties can arise in distinguishing between government speech and government regulation of private expression. To determine whether the government intends to speak for itself or to regulate private expression, we conduct a "holistic inquiry," looking to (1) "the history of the expression at issue," (2) "the public's likely perception as to who (the government or a private person) is speaking," and (3) "the extent to which the government has actively shaped or controlled the expression."
First, we look to the history of the expression at issue. We consider both the general history of posting messages on school walls as well as the specific history of the District in allowing similar messages to be posted on its walls. As to general history, the parties do not dispute that schools have traditionally controlled and communicated messages on posters placed on their walls. The District's specific history, however, tells another story. The District had not previously allowed private individuals to display a poster series like the Inclusive Poster Series on school walls. Indeed, Superintendent Baumann attempted on multiple occasions to exclude the BLM posters from the District, but the District acquiesced to the wishes of private persons after facing backlash from members of the community.

