Greene has promoted multiple baseless conspiracy theories, including the claim that Hillary Clinton is responsible for a series of murders; that Democratic Party elites are responsible for a satanic child sex trafficking ring; that the government orchestrated the
2017 Las Vegas shooting; that the
Stoneman Douglas High School shooting in
Parkland, Florida, was a "false flag" attack intended to help introduce gun control; that the
Sandy Hook Elementary School shooting was staged; that
Barack Obama and his advisor
Valerie Jarrett were secretly Muslim and that the
September 11 attack on the Pentagon was fake. Greene also promoted the false
anti-Semitic conspiracy claim that the
2018 Camp Fire, a deadly wildfire in California, was caused by
Rothschild Inc. "space solar generators".
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. Greene claimed Clinton murdered her political enemies in a revival of the "
Clinton Kill List" conspiracy theory.
[7] In one of her own videos, 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 New York senate seat.
Greene supported the debunked far-right
QAnon conspiracy theory, saying in videos posted in 2017 on Facebook that the theories were "worth listening to". She stated in a video, "There's a once-in-a-lifetime opportunity to take this global cabal of
Satan-worshiping pedophiles out, and I think we have the president to do it."