Humble v. Planned Parenthood Arizona, Inc.

Whether an abortion regulation that is rationally related to the state's interest in maternal health creates an undue burden and is therefore invalid (a) only when it erects a substantial obstacle to obtaining a pre-viability abortion, as the Fifth and Sixth Circuits held, or (b) when "the extent of the burden a law imposes on a woman's right to abortion" outweighs "the strength of the state's justification for the law," as the Ninth Circuit held in the decision below.