The convention episode was hilarious. Harry Anderson played Tanner's coordinator for the convention, and he played the character as an obnoxious ass, throwing Tanner's people out of the "war room" left and right. Of course, Tanner got no votes.
But there was a wonderful scene where Mrs. Dukakis appeared to ask Tanner to support her husband after the convention. Still, it would have been funnier if Dukakis himself had appeared on the show.