The court noted that first amendment rights are not without limit but may be restricted by the state if it has a sufficiently compelling interest.

Our generation has witnessed a new and compelling interest in the study of genealogy.

Likewise, a district may consider it a compelling interest to achieve a diverse student population.

Strict scrutiny requires that a state's means further its compelling interest...

As such, the government had no compelling interest in prohibiting them from airing even during the election session.