Newt Gingrich's remarks Saturday night after the Nevada caucuses and on NBC's "Meet the Press" the next morning proved that presidential candidates should talk policy, not process. Proclaiming "We want to get to Georgia, to Alabama, to Tennessee," Mr. Gingrich said primaries in the South would produce "a series of victories" that by the April 4 Texas primary would make him "very, very competitive in the delegate count." Well, the Gingrich Southern strategy faces big obstacles, starting with Rick Santorum and Ron Paul. Demanding that these two candidates drop out so he becomes the only conservative alternative to Mitt Romney...