It's a fool's errand to use traditional indicators as definitive evidence that Sarah Palin is or is not running for president. If nothing else, she's made clear since her national debut two-and-a-half years ago that she plays by her own set of rules. But her pugnacious speech over the weekend in Wisconsin, promotion thereof and re-launch of her PAC's website today, suggests that she very much wants to stay in the political conversation. As has been well-documented, Palin reads most everything written about her. So she surely didn't miss recent stories about her declining poll numbers and relative quiet. For...