Advocacy based on conspiracy theories
After the first round of voting in the 2020 Republican primary election, but before the Republican primary runoff election, Politico rereleased videos Greene published in which she expressed racist, antisemitic, and Islamophobic views. Her support for bigotry and the QAnon conspiracy theory in the videos were condemned, including by conservatives, such as McCarthy and Republican whip Steve Scalise, but they took no action against her, with McCarthy remaining neutral in the runoff. Some of Greene's social media postings and publications remained online through her 2020 campaign. After they drew attention in January 2021, she deleted them.
Greene has promoted multiple 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 secretly visited North Korea and sabotaged nuclear diplomacy to cover up untoward dealings with Iran, that Obama and his advisor Valerie Jarrett were secretly Muslim, and that the September 11 attack on the Pentagon was fake. Greene also promoted a false anti-Semitic conspiracy theory that the 2018 Camp Fire, a deadly wildfire in California, may have been caused by "what looked like lasers or beams of blue light" from "space solar generators" in a scheme involving California Governor Jerry Brown, companies PG&E, Rothschild & Co, and Solaren.
In May 2022, using a malapropism, Greene promoted the conspiracy theory that the U.S. government is planning to force Americans to eat fake meat grown in a "peach tree dish" by Bill Gates.
In August 2022, Greene said that Democrats had designed the killing of Ayman al-Zawahiri to boost Biden in the midterms because the Russian invasion of Ukraine had not achieved this, shortly before doubting he had been killed.
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.
In January 2021, Media Matters found a 2018 Facebook post that showed Greene agreeing with a conspiracy theory known as Frazzledrip, which asserts that there is a video of Hillary Clinton and her assistant Huma Abedin murdering a child in a satanic ritual and that Clinton later ordered a hit on a police officer to cover it up. Greene dismissed Media Matters' findings as the work of "Communists [sic] bloggers".
Greene supported the debunked far-right QAnon conspiracy theory, which she discovered through columnist Liz Crokin. In a 2017 video, she said that "many of the things" said on 4chan by the eponymous Q — whom she called a "patriot" — "have really proven to be true". She said, "There's a once-in-a-lifetime opportunity to take this global cabal of Satan-worshipping pedophiles out, and I think we have the president to do it."
According to her author biography page, Greene wrote 59 articles for the now-defunct conspiracy theory website American Truth Seekers, including one linking the Democratic Party to "Child Sex, Satanism, and the Occult". When she ran for the House of Representatives in 2020, she distanced herself from that conspiracy theory and said she had not referred to Q or QAnon during her campaign. She said she no longer had a connection with QAnon and mentioned having found misinformation. During a November 2025 appearance on The View, Greene said of QAnon: "I was a victim, just like you were, of social media lies and stuff you read on social media."
In a 2017 video posted to Facebook, Greene expressed doubt that the perpetrator of the 2017 Las Vegas shooting, a large-scale incident she believes was intended as an attack on the right to bear arms, acted alone. She claimed that the August 2017 Charlottesville white nationalist rally, in which a counter-protester was killed in a car attack, was an "inside job". She said the 2019 Christchurch mosque shootings in New Zealand were a false flag for the same end.
In a 2018 interview, Greene expressed support for a conspiracy theory that a plane did not hit the Pentagon during the September 11 attacks; she referred to "the so-called plane that crashed into the Pentagon" and said that "it's odd there's never any evidence shown for a plane in the Pentagon", despite an abundance of evidence. On another occasion, at a conservative conference in 2018, Greene said 9/11 was part of a U.S. government plot. Following an August 2020 Media Matters report on her comments, Greene wrote on Twitter: "Some people claimed a missile hit the Pentagon. I now know that is not correct." She has also claimed that Democratic National Committee staff member Seth Rich was murdered by the MS-13 gang on Obama's behalf. According to Greene, Obama is secretly a Muslim; in actuality, he is a Christian.
In a February 2019 interview, Greene suggested that Supreme Court Justice Ruth Bader Ginsburg had been replaced in public appearances by a body double. A QAnon-related conspiracy theory claimed that Ginsburg had died years earlier and that Democrats used a body double to conceal her death so they could hold onto her Supreme Court seat during Trump's presidency. Ginsburg actually died on September 18, 2020, during Trump's presidency, and Trump appointed Amy Coney Barrett as her successor.
In a 2018 Facebook post found by Media Matters in January 2021, Greene claimed that the 2018 Stoneman Douglas High School shooting in Parkland, Florida, was an organized false flag operation. In another post, she claimed that the 2012 Sandy Hook Elementary School shooting was also a false flag operation. In another Facebook post later in 2018 she wrote: "I am told that Nancy Pelosi tells Hillary Clinton several times a month that 'we need another school shooting' in order to persuade the public to want strict gun control." Parkland shooting survivors such as David Hogg and Cameron Kasky, as well as Fred Guttenberg, whose daughter was killed in the Parkland shooting, condemned Greene's remarks and demanded that she resign from Congress. Greene called Hogg, who advocates gun control, "#littleHitler" and, in a 2019 interview with a gun-rights group, denounced him as an "idiot" who is trained "like a dog". A March 2019 video shows Greene following and taunting Hogg, accusing him of using children for his cause. After the encounter, she called him a "coward" and falsely claimed he is funded by George Soros. The website Snopes found the video uploaded by Guttenberg and others was the second incident in which Greene targeted Hogg. Both occurred on March 25, 2019, and Greene live-streamed the first to her Facebook account. The second video was uploaded to Greene's YouTube account in January 2020.
In January 2021, a Greene staffer threatened to have WRCB-TV reporter Meredith Aldis arrested after Aldis tried to ask Greene a question at a town hall event about her harassment of Hogg.
Soon after these comments came to light, Representative Jahana Hayes, whose district includes Sandy Hook, circulated a letter to the House Republican leadership urging them not to seat Greene on the Education Committee. Hogg called for Greene to be expelled from Congress, saying that Speaker McCarthy tacitly supported Greene by not taking actions to sanction her.
In the aftermath of the Robb Elementary School shooting in May 2022, Greene said that the shooter had engaged in cross-dressing, echoing similar claims by right-wing politicians and media figures that the shooter was transgender. Greene went on to claim without evidence that the shooter was in the same Discord server as the teen accused of carrying out the 2022 Buffalo shooting and that there was a third party who "groomed" both young men. She added that there were suggestions that this groomer was a former FBI agent.
Greene has criticized the presence of the Georgia Guidestones, a 19-foot (5.8 m) high megalithic granite monument installed in Elberton in 1982, an attraction that drew 20,000 annual visitors. In an interview with InfoWars conspiracist Alex Jones on July 7, 2022, the day they were dynamited by unknown saboteurs, she said ecumenical texts inscribed on it represented a nefarious future of "population control" as envisioned by the "hard left". She added, "There is a war of good and evil going on, and people are done with globalism".
In 2018, Greene shared a video, With Open Gates: The Forced Collective Suicide of European Nations repeating the antisemitic white genocide conspiracy theory that Zionists are conspiring to flood Europe with migrants to replace the native white populations. The video, uncovered by Media Matters, said that those supporting refugees are using "immigrant pawns" to commit "the biggest genocide in human history". In sharing the video, Greene wrote that: "This is what the UN wants all over the world". The white genocide conspiracy theory has been associated with white supremacy and espouses the unsubstantiated belief that white people, in a "Great Replacement", will eventually become a minority in Europe and North America due to declining white birth rates and high rates of immigration. Greene has also falsely called George Soros — a Jewish businessman and Holocaust survivor — a Nazi. She promoted the conspiracy theory that Soros' family collaborated with the Nazis in Hungary and is "trying to continue what was not finished".
In 2018, Greene's Facebook account shared a conspiracy theory about the Camp Fire, a deadly Californian wildfire, suggesting that it could have been caused by "what looked like lasers or beams of blue light" from "space solar generators" in a scheme involving California governor Jerry Brown, companies PG&E, Rothschild & Co, and Solaren. For these comments, Greene was condemned by the Republican Jewish Coalition, the Conference of Presidents of Major American Jewish Organizations, and Christians United for Israel, with the latter group stating that Greene had promoted "wild anti-Semitic conspiracy theories". Meanwhile, Representative Jimmy Gomez and the Jewish Democratic Council of America called for Greene to be expelled from Congress.
Solaren, a solar energy company, noted several fundamental defects in the conspiracy theory. Solaren said that its space-based solar power system did not beam power using the visible light part of the electromagnetic spectrum, and so could not be observed as the "blue beams of light" referenced by the theory; that the system does not use lasers, and so could not have "laser beams"; that Solaren's power contract with PG&E ended in 2015; and that by 2021, Solaren had not launched any solar power satellites into space at all. Thus they had not had one in space in 2018.
