This Politico story on Wisconsin governor Scott Walker suggests that he lacks charisma, and it will hinder him in 2016 if he runs for the Republican presidential nomination. Myself, I think Walker has gotten better and better at filling the stage the longer he has been governor, but let’s also have some perspective. The Republican nomination has gone in recent decades to George H. W. Bush, Bob Dole, John McCain, and Mitt Romney. I don’t think it’s a knock on any of these men to note that none of them won their nominations by outdoing his rivals in charisma.