As we sort through our reasons for gratitude this Thanksgiving, we can thank our lucky stars that Newt Gingrich will never be president of the United States. Gingrich, currently the flavor of the GOP minute, is an interesting man with larger-than-life strengths in that he is a shrewd, bombastic collector of opinions. He also has some staggering weaknesses, such as arrogance, lack of discipline and hypocrisy. But let us not savage the man; he’s already self-destructed more times than seems humanly possible. Where to start? He was ejected from his post as speaker of the House for ethics violations. Since...