Gingrich went overboard on his attacks on overboard judges. Here's a far more sober account of what can be (and ought to be) done, by Ralph Rossum. Curt Levey and Carrie Severino add some thoughts on reining in a wacky judiciary without undermining judicial independence--both are essential for the rule of law. Judicial independence is not a license for judiciary supremacy.
An even better lesson can be found in early American political documents that list the independence of the judiciary and the separation of powers among the fundamental rights of a free people. Consider for example the Massachusetts Constitution and the Essex Result,