Sanders says that would be “terrific” and tries to end the conversation, but the duo says “Greta” is about to visit Russia and needs advice on how to behave there.

The Vermont senator tells her to be careful to not be used for PR purposes. “I think what you don’t want to do is simply walk in there and get used,” he says.

“Russia and (President Vladimir) Putin has been very bad, as far as I know, on climate change. They have a lot of oil, oil is important for their economy, they make a lot of money on oil,” Sanders explains.

After that, “Greta” tells Sanders that he was recruited by the KGB in 1988 when he visited Russia and has since been a “sleeper agent.”

“Now it’s time to wake up and fulfill your mission, become president of the United States, build communism in the United States and work for Russia!” she says, after which Sanders appears to hang up the phone.