Chief Justice Roberts "warned Friday that the Supreme Court risks losing its own authority if it allows the existence of a law like Texas’ near-total abortion ban, which attempts to circumvent the courts...he wrote, “that the Constitution is the ‘fundamental and paramount law of the nation,’ and ‘[i]t is emphatically the province and duty of the judicial department to say what the law is.'” He cited as proof the landmark 1803 Marbury v. Madison case, which established the principle of judicial review, allowing the court to nullify laws that violate the Constitution."