House Republicans Probe Wikipedia Over Alleged Bias, Foreign Manipulation

The lawmakers are demanding records on editing misconduct, citing concerns about alleged anti-Semitic, pro-Kremlin content, and influence on AI training data.

House Oversight Committee Chairman Rep. James Comer (R-Ky.) presides over a hearing in Washington on March 5, 2025. Madalina Vasiliu/The Epoch Times

House Republicans have opened an inquiry into whether the Wikimedia Foundation is doing enough to stop coordinated efforts to manipulate Wikipedia entries on important and sensitive topics to influence public opinion in the United States.

In an Aug. 27 letter to Wikimedia Foundation CEO Maryana Iskander, James Comer (R-Ky.), chairman of the House Oversight Committe, and Nancy Mace (R-S.C.), chairwoman of the panel’s Subcommittee on Cybersecurity, Information Technology, and Government Innovation, requested records on volunteer editors found to have violated site rules and documentation of the foundation’s policies for ensuring neutrality.

The lawmakers said they are examining whether hostile foreign actors, taxpayer-funded academic institutions, or other organized groups are behind manipulation campaigns.

The inquiry follows recent reports detailing attempts to push anti-Semitic and anti-Israel narratives on Wikipedia pages related to Middle East conflicts and to inject pro-Kremlin messaging aimed at Western readers. The GOP lawmakers warned that such edits not only shape public perception but also risk planting bias into artificial intelligence systems that rely on Wikipedia for training data.

“The Committee recognizes that virtually all web-based information platforms must contend with bad actors and their efforts to manipulate,” Comer and Mace wrote in the letter.

“Our inquiry seeks information to help our examination of how Wikipedia responds to such threats and how frequently it creates accountability when intentional, egregious, or highly suspicious patterns of conduct on topics of sensitive public interest are brought to attention.”

Comer and Mace noted that the Wikimedia Foundation has acknowledged taking action in response to misconduct by volunteer editors who craft Wikipedia’s articles. The lawmakers set a Sept. 10 deadline for the foundation to turn over records of these actions, including arbitration committee proceedings, details of disciplined accounts, and analyses of manipulation. They’re also seeking documentation of Wikipedia’s editorial policies, including ones that address bias and ensure neutrality.

The Wikimedia Foundation issued a statement to several media outlets saying it looks forward to responding to the committee’s questions and discussing the importance of safeguarding the integrity of information on the platform.

Allegations of bias have long dogged Wikipedia. Several studies, including two from Harvard, have identified that Wikipedia exhibits a left-wing bias. Larry Sanger, cofounder of Wikipedia, told EpochTV’s “American Thought Leaders“ in 2021 that the online encyclopedia has drifted away from impartiality and slid into ”leftist propaganda.”

Sanger said that in recent years, the site has increasingly misrepresented people on the political right or those with contrarian views, often omitting key achievements and portraying them as “conspiracy theorists” or “far right.”

He also stated that Wikipedia has excluded conservative outlets, causing its content to shift to the left.

Wikipedia did not respond to a request for comment on Sanger’s criticism.