And then had come the unlooked-for tidings of the imminent proceedings for divorce. And such a divorce! There were cross-suits and allegations and counter-allegations, charges of cruelty and desertion, everything in fact that was necessary to make the case one of the most complicated and sensational of its kind. And the number of distinguished people involved or cited as witnesses not only embraced both political parties in the realm and several Colonial governors, but included an exotic contingent from France, Hungary, the United States of North America, and the Grand Duchy of Baden.
from The Unkindest Blow, a short story by Saki
Does "political parties" mean the members of political parties?