Why did Trump need to employ a professional liar?

(CNN)Michael Cohen brought a series of bombshell allegations to his appearance Wednesday before the House Oversight and Reform Committee — and touched off a bizarre partisan battle in the room. CNN’s commentators weigh in on the hearing. The opinions expressed here are their own. The viewers will have to judge how much, if any, of Cohen’s testimony about President Donald Trump they accept. But I found the frantic efforts of Trump’s rabid defenders to dismiss Cohen as a “pathological criminal” curious in one major respect: This is the same man Donald Trump kept by his side for a decade, to handle his most sensitive assignments — to handle clandestine deals and make bad stories go away. Cohen was Trump’s fixer. …