Most of us who have followed the GOP nomination contest expected Donald Trump to show his posterior pursuant to his loss to Senator Ted Cruz in the Iowa caucuses, but it is unlikely that many expected him to crack up after only one defeat. Nonetheless, that seems to be what is happening. Even when he reverted to his trademark antics only one day after an uncharacteristically rational concession speech, few students of the Donalds weird campaign could have been surprised. It is difficult, however, to escape the conclusion that Trump is losing it when he claims that Cruz foisted Obamacare...