"No one remembers who came in second," is a quote often attributed to pro golfer Walter Hagen. Twice, in the space of six months, it was tweeted out by golf lover and perennial winner (if you believe his own hype), Donald J. Trump. And on Monday night, after he was beaten by Ted Cruz in the Iowa caucuses, it was gleefully retweeted by tens of thousands of Twitter users in the wake of a defeat Trump said would never come.