There’s a book called The Vietnam War that’s a visual guide to the docuseries by Ken Burns. Obviously the focus is Vietnam, but the series talks a lot about American politics of the time. (I also highly recommend the docuseries, not just the book)

Vietnam War one blew my mind. War started by France who refused to give up a colony after signing/brokering deal for other countries to give up their colonies. USA cant keep nose out of it....