Godkin viewed populists such as William Jennings Bryan as barbarians, and they returned the favor by viewing Mugwumps as enemies rather than as potential allies.
William Jennings Bryan is very civilized. 
mnli hypothesis: William Jennings Bryan is very civilized.  premise: Godkin viewed populists such as William Jennings Bryan as barbarians, and they returned the favor by viewing Mugwumps as enemies rather than as potential allies.