Friends of the Earth, Inc. v. Laidlaw Envtl. Servs. (TOC), Inc.

Holding that plaintiffs who curtailed their recreational activities on a river due to reasonable concerns about the effect of pollutant discharges into that river had standing

District of Columbia et al. v. Heller

Holding it irrelevant to the constitutionality of D.C.'s "handgun" ban that the law allowed citizens the possession of substitutes, like "long guns"

Roper v. Simmons

Holding "that the death penalty cannot be imposed upon juvenile offenders"

McDonald v. City of Chicago

Holding that the Second Amendment applies to the states, through incorporation under the Fourteenth Amendment

Citizens United v. Fed. Election Comm'n

Holding that disclaimer and disclosure requirements are subject to exacting scrutiny

Valley Forge College v. Americans United

Holding that "the psychological consequence presumably produced by observation of conduct with which one disagrees ... is not an injury sufficient to confer standing under Art. III, even though the disagreement is phrased in constitutional terms"

U.S. v. Stevens

Holding law unconstitutional under First Amendment where "impermissible applications ... far outnumber[ed] any permissible ones"

Planned Parenthood of Southeastern Pa. v. Casey

Holding that a spousal notification provision was unconstitutional

Lawrence v. Texas

Holding statute that criminalizes two persons of same sex engaging in intimate sexual conduct unconstitutional under the Fourteenth Amendment

Roe v. Wade

Holding that end of pregnancy did not moot the case because the plaintiff was capable of becoming pregnant again

Section 924 - Penalties

Holding that conviction for eluding police, under Maine statute which provides that "[w]hoever, after being requested or signaled to stop, attempts to elude a law enforcement officer by driving a vehicle at a reckless rate of speed which results in a high-speed chase between the operator's vehicle and any law enforcement vehicle using a blue light and siren is guilty" of a felony-level crime, involves conduct that presents a serious potential risk of physical injury to another for purposes of 18 U.S.C. § 924(e)

Section 922 - Unlawful acts

Finding that "even before the sale of a firearm, the gun, its component parts, ammunition, and the raw materials from which they are made have considerably moved in interstate commerce"

Section 2 - Principals

Holding aiders and abettors punishable as principals under federal criminal law

Section 371 - Conspiracy to commit offense or to defraud United States

Requiring proof of an "act to effect the object of the conspiracy"

Section 921 - Definitions

Adopting this definition

Section 8 - Powers of Congress

Granting Congress the power to “provide for the common Defence,” to “regulate Commerce with foreign Nations,” and to “establish an uniform Rule of Naturalization”

Section 923 - Licensing

Creating recordkeeping obligations

Section 151.001 - Rights and Duties of Parent

Granting minor child's parents "the right to represent the child in legal action and to make other decisions of substantial legal significance concerning the child."

Section 27 - Mortgage lending business defined

Defining "mortgage lending business"

Section 101.003 - Child or Minor; Adult

Defining a child as someone under 18 years old who is not currently and has not ever been married

Section 478.99 - Certain prohibited sales or deliveries

Transferring firearms to a person who indicated that he is prohibited from possessing firearms

Section 478.124 - Firearms transaction record

Mandating that " licensed importer, licensed manufacturer, or licensed dealer shall not sell or otherwise dispose, temporarily or permanently, of any firearm to any person, other than another licensee, unless the licensee records the transaction on a firearms transaction record, Form 4473"

Section 478.96 - Out-of-State and mail order sales