The Supreme Court on July 6, 2020, struck down a provision in a robocall
law that allowed government to use robocalls to collect debt, saying it was
an impermissible speech discrimination under the First Amendment. The Court
in Barr v. American Association of Political Consultants found the rule a
content-based exception.

Boos v. Barry (1988) ruled that a D.C. law violated the First Amendment by
banning the display of signs criticizing a foreign government outside that
government’s embassy.

City of Ladue v. Gilleo (1994) said a city could not stop homeowners from
posting political signs. Banning these signs stopped First Amendment
protected expression.

Reed v. Town of Gilbert (2015) invalidated a city ordinance that restricted
the size of directional signs after a pastor challenged the law as
violating the First Amendment.

In 2012, the Supreme Court overturned the Stolen Valor Act as an
infringement on free speech after the law was used to prosecute a man who
falsely claimed to have won a Congressional Medal. In United States v.
Alvarez, the Court found a better remedy in the counterspeech doctrine.