This series is all about democrats. They do not hide it. Thought Spacey was the Speaker of the House?
Having read the books and seen the BBC version, where-in all the characters are in the Conservative Party (same party the author was a member of), I’ll say it’s not really “about” any party. They’re all dems in the US show but most of the major events and story beats, not to mention the conniving nature of the main character, are from the original source. In all 3 versions F.U. (wish they’d actually call him that in the US version) is Whip because it’s the Whip’s job to have all the dirt (and help hide it) and keep the party members in line which is the source of his power.
I did check. He is majority whip.
hmmmmm!