Republicans hold a weak hand in Washington but a stronger grip in states where voters have entrusted them with power. Performances there can boost not just the Republican image but bring the party back to power in Washington. More importantly, they can show conservative principles work. The "Red State Model" can, in the Wall Street Journal's words, "Drive Republican Revival." Walter Russell Meade, one of our most brilliant thinkers, has written quite perceptively about the collapse of what he calls "the blue model." These are states that have been firmly in the hands of the Democratic Party and their allies...