We need a fool in the White House. No, I've not joined the leftist Bush-is-an-idiot crowd. The president is a smart man, but he's in deep trouble. And no one in the White House seems willing to tell him why, which is where an official fool -- or White House jester, if you prefer -- would come in handy. In the Middle Ages, the court fool was often the only person who could point out the king's foibles and live to tell about it. No less than some medieval castle, the White House can become a haven for yes-men (and...