The United States Supreme Court has issued opinions in a case on robocalls and the First Amendment and a case on whether a presidential elector must support the state voters’ choice.
Read the court's opinion in Barr v. American Assn. of Political Consultants: https://www.supremecourt.gov/opinions/19pdf/19-631_2d93.pdf
Read the court's opinion in Chiafalo v. Washington: https://www.supremecourt.gov/opinions/19pdf/19-465_i425.pdf