One of the things that has troubled me the most about Donald Trump is his lack of emotional maturity. Unlike a reality TV show host, it is vital that the President of the United States be very grown up and mature. But Trump, time and time again, acts like a child, name calling, holding grudges, and crying when things don't go his way. Case in point, the Iowa caucuses. On election night Trump grudgingly congratulated Ted Cruz. But now he's saying that Cruz "stole" the Iowa Caucuses by repeating a news report that Ben Carson was about to leave the...