Wait, who were the first two?
Taft and Bush 41
Not me trying to think of trans readings of what I know about them. My "median voter" half thought of the bathtub thing for Taft and my "autism" half thought of the fact that the original
Quantum Leap aired during Bush's administration. I don't know about the bathtub, but I do know that
Quantum Leap sees Sam Beckett experience gender euphoria in just about every episode.
EDIT: And now that I think of it, the episode where Sam had to perform
Hamlet naked (which aired in January 1992, while Bush was still President) is a pretty solid allegory for gender
dysphoria as well.