The hardest thing about explaining very close election defeats is that you can talk yourself into believing any number of factors, large or small, could have made the crucial difference. Hillary Clinton’s defeat came down to 100,000 votes in three states out of nearly 130 million cast nationally. That’s a deficit so tiny that the search for a single culprit will probably take political detectives down the dark road to madness. It is understandable that within the ranks of the Clinton campaign’s own high command, it is an article of faith that FBI director James Comey cost HRC the presidency...