“The job of the judge is to do what you think is right,” said retired Supreme Court Justice Stephen Breyer recently on the PBS NewsHour. Breyer — who is promoting his new book, “Reading the Constitution” — expressed this idea again when he said that, as a Supreme Court judge, “You are pushed by what is right, and that is a fundamental rule.” We should all hope that Breyer doesn’t teach his Harvard Law School students that the job of Supreme Court justices is to do what they think is right. Judges, including those on the Supreme Court, are not...