Andrew Jackson and John Quincy Adams did it. So did Martin Van Buren and William Henry Harrison. Grover Cleveland and Benjamin Harrison, too. Also William Jennings Bryan and William McKinley. And of course, Dwight D. Eisenhower and Adlai Stevenson.
Presidentialelection reruns are not unknown in our history; they happened frequently in the nation's early years. But there hasn't been one in two-third…