Greene has said there are links between Hillary Clinton and pedophilia and human sacrifice and in 2017 speculated that the Pizzagate conspiracy theory is real. Reviving the Clinton Kill List conspiracy theory, she claimed Clinton murdered her political enemies. In a video posted to YouTube in 2018, Greene suggested John F. Kennedy Jr.'s death in a plane crash in 1999 was a "Clinton murder" because he was a possible rival to her for a U.S. Senate election in New York.