Manchurian candidate

noun1

1. •
   A person of influence, especially a politician, who is being manipulated by an enemy power to harm the interests of their own country, possibly without their own full awareness.

   • Get outta my head 'cause I don't need this! Why didn't I see this? I'm a victim Manchurian Candidate I have sinned by just Making my mind up and taking your breath away — 1997