[Ross] Michael Uhlmann provides a reminder of just how tangled the Supreme Court's abortion jurisprudence has become over the years, by quoting the Court's own summary of the Planned Parenthood v. Casey decision:
O’Connor, Kennedy, and Souter, JJ., announced the judgment of the Court and delivered the opinion of the Court with respect to Parts I, II, III,V-A, and VI, in which Blackmun and Stevens, JJ., joined, an opinion with respect to Part V-E, in which Stevens, J., joined, and an opinion with respect to Parts IV, V-B, and V-D. Stevens, J., filed an opinion concurring in part and dissenting in part. Blackmun, J., filed an opinion concurring in part, concurring in the judgment in part, and dissenting in part. Rehnquist, C.J., filed an opinion concurring in the judgment in part and dissenting in part, in which White, Scalia, and Thomas, JJ. Joined. Scalia, J., filed an opinion concurring in the judgment in part and dissenting in part, in which Rehnquist, C.J., and White and Thomas, JJ., joined..
Got that? Casey, of course, was more than a decade ago, but matters haven't become any clearer since.