"STUBBY LITTLE LEGS"?....Garance Franke-Ruta, reporting from deep in the wilds of heartland Republicanism, is trying to figure out why so many GOPers are going gaga over Fred Thompson. So she asked a "leading figure in the Iowa Republican Party," who told her it's because Fred is a celebrity, Fred is a real conservative, and Fred weighs more than Hillary Clinton. Seriously: "Can you imagine what debates are going to be like with great big Andrew Jackson-looking Fred and Hillary on her stubby little legs, stamping her feet?" Thompson, if elected, would be the tallest president ever. Republicans are not just...