Stenberg v. Carhart (5-4).

The Court overturns a Nebraska ban on so-called "partial-birth abortion" because the ban failed to include an exception to preserve the health of the woman, imposed an undue burden on a woman's right to choose, and was so broad and vague that it could bar constitutionally protected abortion procedures performed before viability. Four separate dissenting opinions were filed by Chief Justice Rehnquist and Justices Scalia, Kennedy, and Thomas. The decision renders similar bans, passed in over 30 states and in Congress, unconstitutional or unenforceable.