↓ Transcript
Panel 1:
Theodore Roosevelt and William H. Taft are watching John Tyler give a speech.
John Tyler: And that's why I have decided to not be a candidate for president in 2024.
Roosevelt: "The ones who have to announce they're not running..."

Panel 2:
Roosevelt: "You know what I like to call them?"
Taft: "What?"

Panel 3:
Roosevelt: "Can't-didates."
Taft: "That reminds me, I still need to declare my can't-didacy."