Is this pbs documantary (not here) from Ken Burns – i saw it on netflix and can highly recommend it.
The tone is well set with the better music and most sides although the french are ignored. and deals with the more american aspects.
Running to twenty hours it steals a few tricks from Erol Morris (my blog) who also does good work although the sound quality suffered in there version.
The dogma and lack of facts are scary in hindsight and is something both red and blue parties are still possible to do.