We have, via a leak, the draft majority opinion of a Supreme Court ruling overturning Roe v. Wade and the half-century-old constitutional right to abortion.

The opinion is by Justice Samuel Alito, in a case from Mississippi, and would presumably be joined by four others; the reporting is that Chief Justice John Roberts would gut Roe, but not overturn it, while the three liberal justices would preserve it. Experts and the silence of the court suggest that the leaked draft is genuine. The huge caveat is that draft opinions usually change before they are finalized.

Some initial reactions: