In political jargon, a useful idiot is a term currently used to reference a person perceived as propagandizing for a cause—particularly a bad cause originating from a devious, ruthless source—without fully comprehending the cause's goals, and who is cynically being used by the cause's leaders.[1][2] The term was often used during the Cold War to describe non-communists regarded as susceptible to communist propaganda and manipulation
The Russia translation isn't even in plural dumb Biden boomer. Plus it was originally "useful fools" not "idiots" dumb Biden boomer
plus the proper political term is "nолезные дураки"
You should try mastering basic English before you go into areas you no clue
