America still had the naïve ability to be shocked back on Nov. 16, 1973, when a rambling then-President Richard Nixon stood up before 400 Associated Press journalists. Wallowing in the Watergate scandal, the 37th president joked morbidly about his plane crashing before he could be impeached, then uttered these famous words: “‘People have got to know whether or not their president is a crook. Well, I am not a crook.” Quitting before he could be impeached and pardoned by successor Gerald Ford, Nixon never had his day in court. Some 48 years later, a Watergate-style investigation and accelerating…