A case in which the Court held that the Nevada law requiring elected officials to disqualify themselves when they are asked to vote on matters that present a conflict of interest was constitutional.

A case in which the Court held that a Vermont statute banning the sale, transmission or use of prescription drug user data violated protected speech of the pharmaceutical research companies, manufacturers and others who use that data.

A case in which the Court held that securities fraud plaintiffs need not prove loss causation in order to obtain class certification.

A case in which the Court held that a federal sentencing court must determine whether an offense under state law is a "serious drug offense" within the meaning of the Armed Career Criminal Act by consulting the maximum sentence applicable at the time of the defendant's conviction.

A case in which the Court held that the fiduciary exception to the attorney-client privilege does not apply to the general trust relationship between the United States and the Indian Tribes.

A case in which the Court that held the Clean Air Act bars suits by governmental bodies and private parties seeking to curb emissions from utilities via the federal common law.

A case in which the Court held that a district court may not give a defendant a longer prison sentence based on speculation about if and when the defendant would be able to participate in an inmate drug rehabilitation program.