I suppose Jane Wyman is the First Lady.
5 seconds sound clip from the Back to the Future movie soundboard.
You can hear this line at 00:50:25 in the Blu-ray version of the movie.
Quote context
[...]
- Look at her sweatshirt, Doc. Class of 1984?
- Pretty mediocre photographic fakery.
- They cut off your brother's hair.
- I'm telling the truth, Doc. You got to believe me.
- Then tell me, future boy, who's President of the United States in 1985?
- Ronald Reagan. Ronald Reagan? The actor? Then who's vice president? Jerry Lewis?
- I suppose Jane Wyman is the First Lady.
- And Jack Benny is secretary of the treasury.
- Doc, you gotta listen to me.
- I've had enough practical jokes for one evening.
[...]