The Supreme Court declined to hear a case on car horn honking as a form of free speech, upholding California's anti-honking law.

The Supreme Court declined to hear a case about whether honking a car horn is a constitutionally protected form of free speech. A California woman, Susan Porter, argued that using a car horn for expressing political views should be protected under the First Amendment. The high court did not comment on the decision, leaving the anti-honking law in place in California.