I just came across a very nice example of a rhetorical structure I know I have seen many, many times:
Our national character feels like it’s possessed by every hellish ghost of American history: white supremacist patriarchs, gilded age swindlers, paranoid McCarthyists, Know-Nothings and Klansmen and con artists and terrorists.
Notice that the usual comma-delimited list turns, after the word "McCarthyists", into an unpunctuated list separated by repeated use of the word "and". The effect (at least on me as a reader) is to create a simultaneous sense of both urgency (we are trying to get through this list as fast as possible) and exhaustion (this list is SO LONG that we can't even use commas any more).
Does this rhetorical technique have a name?