Former CIA operative Valerie Plame’s congressional campaign has pulled in donations from several celebrities and a former congressman who has questioned the Holocaust.

Breaking Bad star Bryan Cranston, Naomi Watts, who played Plame in Fair Game, and actor Michael Douglas have all contributed to the campaign since May, according to Federal Election Commission filings.

Former California Rep. Paul McCloskey made three donations in the same period. McCloskey referenced the “so-called Holocaust” during a speech in 2000 to the Institute for Historical Review, which says it “does not ‘deny the Holocaust,” but “has no ‘position’ on any specific event or chapter of history.”

Bryan Cranston, Valerie Plame, and Paul 'Pete' McCloskey. (AP)

Plame herself was accused of anti-Semitism for sharing an article in 2017 entitled "America's Jews Are Driving America's Wars" from a website run by a Holocaust denier.

The 55-year-old, who is running for an open House seat in New Mexico, claims she had not read the article before she retweeted it and was unfamiliar with the website it was published. She has since apologized for spreading the article.