A 5-4 Supreme Court today ruled that the Constitution forbids the federal government from refusing to recognize same-sex marriages. United States v. Windsor, No. 12-307 (U.S. June 26, 2013).

Justice Anthony Kennedy wrote for the Court. Justices Breyer, Ginsburg, Kagan, and Sotomayor joined him.

Chief Justice Roberts and Justices Alito, Scalia, and Thomas dissented.

The decision capped a Term in which the Court tilted heavily in favor of big business, particularly on issues relating to class actions, employment discrimination cases, and alien tort claims. Justice Kennedy made the difference there, too.

Look for a review of the Term’s big commercial cases here next Monday.