Katharine, in ways, Trump is America's Brexit -- an awful choice that the country seems unable to get rid of and move forward from.
Donald's legacy to America is the loss of history and the future because they are insignificant to him. Republicans are trapped in the here and now and so offering a direction, plan, or leadership is beyond them. Unfortunately, Democrats have adopted the condition to a degree.
Donald's world is a see-saw where the other side has to go down for him to go up. There is movement, but he and the apparatus as a whole go nowhere.
Many thanks. Best.