Rick Santorum is very effectively explaining natural law in the context of America's founding documents. You can bet that "Professor" Gingrich is envying Santorum's fabulous answer. This sort of discussion is where Gingrich has along prided himself on being a conservative thought leader, but Santorum left him in the dust.
Sadly, in a general election, these sorts of questions (and answers) don't have the same impact they do in a GOP primary.
