In a 5-4 case, the United States Supreme Court ruled that a warrant is not generally needed to draw blood from an unconscious person suspected of DUI. In the case of Mitchell v. Wisconsin, the Court's Opinion stated that police are almost always allowed to order a blood draw from an unconscious driver without a warrant when they have probable case to believe the person was driving drunk.
An unconstitutionally vague immigration law has been struck down by the U.S. Supreme Court. The case of Sessions v. Dimaya centered on a burglary conviction that that an Immigration Judge determined was an "aggravated felony." If convicted of an aggravated felony, Dimaya would be subject to mandatory detention and automatic removal from the United States.