Planned Parenthood of Mont. v. StateAnnotate this Case
Plaintiffs here challenged the constitutionality of two laws: a 2011 law requiring a parental notification before a minor may obtain an abortion, and a 2013 law requiring parental consent before a minor may obtain an abortion. In 1999, a district court held unconstitutional a similar 1995 law requiring parental notification before a minor may obtain an abortion. Plaintiffs claimed that the 1999 district court order prevented the State from defending the constitutionality of the laws at issue in the current challenge on grounds of issue preclusion. The Supreme Court held that because the laws that were the subject of the current challenge differed from the 1995 law in substantive respects, issue preclusion did not apply in this case.