Jonathan Alter, best-selling author of four books on American presidents, has interviewed nine of the last 10 presidents. The trial of Donald Trump in Manhattan Supreme Court was undoubtedly the trial of the 21st century with a jury verdict of guilty on 34 crimes, Alter attended every day of the 23-day trial for the New York Times and the Washington Monthly, Then, he wrote a terrifically important book about it entitled "American Reckoning." He talks about justice and Donald Trump.