Even as the starting bell rings for the first round of the Republican presidential free-for-all, we’ve got a couple of anonymous Mitt Romney advisors coming off the top rope, aiming elbow smashes at Sarah Palin’s back. They said she’s “not a serious human being” and “if she’s standing up there in a debate, and the answers are more than 15 seconds long, she’s in trouble.” This childish and incoherent nonsense does a lot more damage to Mitt Romney than Sarah Palin. What, exactly, are the criteria for being considered a “serious human being?” Should she just give up her half-hearted...