Republican Premise
A statement for which there is no evidence but has been repeated so many times people assume it to be true.
"It's a well-known fact that both John and Robert Kennedy both had affairs with Marilyn Monroe."
"That's just a Republican premise. There's no verifiable evidence either man knew her apart from professionally as an entertainer."
"That's just a Republican premise. There's no verifiable evidence either man knew her apart from professionally as an entertainer."