?
It appears to be a fanfic about history of USA.
I take it neither of you have heard of Hamilton.
Hamilton
is a fanfic about American history.
But ok yeah. First guy is Thomas Jefferson, guy in the painting/pamphlet is Alexander Hamilton, guy who bursts in is James Madison. The matter being discussed is the Reynolds pamphlet. In which, um, Hamilton talks about fucking another man's wife. For 95 pages. It made sense at the time.
(oh, also, 'daddy's boy' is a reference to George Washington)
(They don't look like the actual historical figures because the artist based them on the actors playing them in the musical, Daveed Diggs, Lin-Manuel Miranda and Okieriete Onaodowan, respectively.)