(JTA) — Georgia Republican Marjorie Taylor Greene will become the first member of Congress who has expressed belief in the QAnon conspiracy theory, which is rich in anti-Semitism.

Greene, whose Democratic challenger dropped out of the race in September, has made headlines throughout the campaign cycle for her promotion of the theory. She signed an online posting in 2018 that accused Jewish billionaire George Soros and the Rothschild family of being involved in the conspiracy, which alleges that powerful figures run an international pedophile ring and influence world policy.

In a rare move for them, the Republican Jewish Coalition endorsed her Republican primary opponent in July, without comment. Greene’s eventual Democratic opponent, Kevin Van Ausdal, dropped out of the race in the very conservative 14th district, in part because Greene’s supporters made him too fearful to campaign.

President Trump has endorsed Greene, calling her a “future star” of the Republican Party, and the National Republican Congressional Committee gave her campaign $5,000 in September.