Constitutional rights, moral controversy, and the Supreme Court

"If a majority of the justices of the Supreme Court believes that a law violates the Constitution, it does not necessarily follow that the Court should rule that the law is unconstitutional. In cases in which it is argued that a law violates the Constitution, the Supreme Court must decide which of two importantly different questions it should address: (1) Is the challenged law unconstitutional? (2) Is the lawmakers' judgment that the challenged law is constitutional a reasonable judgment?"--Provided by publisher.