He knows that his nutty quips will be spreadeagled over every media outlet and roil legions on Facebook and social media. He’s at or near the top of the heap in some polls as a top GOP presidential candidate and that show him even more implausibly actually beating Hillary Clinton in a hypothetical head-to-head showdown. But beyond his endless milking of his rags-to-successful-neurosurgeon story and the inane quips about President Obama and Democrats before packs of ultraconservative fawners and groupies, what makes him real political timber, let alone presidential stuff?