Wisconsin Gov. Scott Walker isn't going to light up the stage with a big personality, like, say, Gov. Chris Christie of New Jersey.
But don't let that mild-mannered Upper Midwestern-ness fool you.
Governor Walker is showing all the tell-tale signs of a budding presidential candidate – the new book, the speeches and media appearances outside Wisconsin focused on his record, the obligatory assertions that he's focused on winning reelection next year, not on 2016.