This George Will column is a virtual encyclopedia about the relative strength of the Democratic and Republican Parties at this point in U.S. history. The column has no thesis or recommendation; it is just a fascinating compendium of important facts. One of the most interesting points in the column is the observation that ever since 1860, the only two Democratic presidents succeeded in office by another Democratic president have been Franklin D. Roosevelt and John F. Kennedy. Yet there have been eleven Republican presidents succeeded by another Republican president.