Daubert v. Merrell Dow Pharmaceuticals, Inc.

Holding that a trial judge must ensure that all admitted expert testimony "is not only relevant, but reliable"

Wal-Mart Stores, Inc. v. Dukes

Holding in Rule 23 context that “[w]ithout some glue holding the alleged reasons for all those decisions together, it will be impossible to say that examination of all the class members' claims for relief will produce a common answer”

Lewis v. Casey

Holding that a prisoner must show an actual injury to state a claim for denial of access to courts

Rizzo v. Goode

Holding that plaintiffs lacked standing to obtain injunctive relief against senior police officials to impose tighter police discipline to prevent harm to civilians

Warth v. Seldin

Holding that Article III requires plaintiffs "to establish that, in fact, the asserted injury was the consequence of the defendants' actions"

Mazurek v. Armstrong

Holding that "a plaintiff's motion for preliminary injunctive relief has a "requirement for substantial proof is much higher" than a defendant's summary judgment motion

Camreta v. Greene

Holding that, when "a civil suit becomes moot pending appeal," we may "vacate the judgment below" so "no party is harmed by what we have called a preliminary adjudication"

Agostini v. Felton

Holding that "lower courts should follow the case which directly controls, leaving to this Court the prerogative of overruling its own decisions"

Unified School Dist. v. Newdow

Holding that the plaintiff lacked standing because the interests of the plaintiff and the right-holder were "potentially in conflict"

Planned Parenthood of Southeastern Pa. v. Casey

Holding that a spousal notification provision was unconstitutional

Section 1983 - Civil action for deprivation of rights

Holding liable any state actor who "subjects, or causes [a person] to be subjected" to a constitutional violation

Rule 23 - Class Actions

Holding that, to certify a class, the court must find that "questions of law or fact common to class members predominate over any questions affecting only individual members"

Rule 702 - Testimony by Expert Witnesses

Adopting the Daubert standard

Section 2201 - Creation of remedy

Granting district courts the authority to create a remedy with the force of a final judgment

Rule 703 - Bases of an Expert's Opinion Testimony

Explaining that facts or data of a type upon which experts in the field would reasonably rely in forming an opinion need not be admissible in order for the expert's opinion based on the facts and data to be admitted

Section 300a-7 - Sterilization or abortion

Prohibiting discrimination against abortion providers in the decision whether the grant admitting privileges

Section 2919.123 - Unlawful distribution of an abortion-inducing drug

Section 103.002 - Discrimination Prohibited

Section 65-4a10 - Performance of abortions; only physicians; RU-486 or any drug induced abortion requirements; violations

Section 28-335 - Abortion by other than licensed physician; penalty; physical presence; violation; penalty

Stating that no abortion shall be performed unless the physician who prescribes the drug is physically present in the same room with the patient when the physician induces the abortion