I note that Schramm (can I call you that, Peter?) found the partisan breakdown of the vote at the federal and state levels. Yes, people voted for Republicans more than for Democrats. But we should remember that we are living in a time with decreasing party identification and loyalty. Membership groups and volunteer organizations are sucking wind today as it is. Political parties have had increasing trouble attracting grassroots participants.
Moreover, the damage McFein ShayMe reforms do to political parties (by federalizing and limiting state and local grassroots activities) also means that the GOP (in particular) seems poorly positioned to take advantage of this election and increase its partisan base.