Conservative activist James O'Keefe of Project Veritas released what he claims is 119 hours of raw audio recorded inside CNN's Atlanta headquarters in 2009.
Project Veritas dubbed the anonymous source of the recordings "Miss X."
O'Keefe says the tapes show that CNN did not include a certain political poll in its reporting. He told CNN in an interview Wednesday he planned to release the tapes, saying the network had "a very important role as an arbiter of news."
Project Veritas said the White House called to compliment the leaked tapes.
One clip from the tapes, according to a Project Veritas news release, shows CNN employees discussing polling data. The release argues the discussion shows an "apathy toward reporting accurate poll numbers."
Another clip shows Nicky Robertson, a former assignment desk editor, saying "Fox News is unbearable," which the release claims shows a "liberal, anti-Republican and anti-Fox News bias." The release also says "profound liberal bias" is shown by an employee's dismissal of climate change deniers.
Here's the climate change clip.
Project Veritas promised a $10,000 bounty for additional leaks of sufficient quality.
My audience, the American people, are deeply upset at the media.
Background on O'Keefe
O'Keefe has been accused of selective editing in previous projects. He pleaded guilty to a misdemeanor in 2010 for entering a federal building under false pretenses during one of his undercover stings involving Louisiana Democrat Sen. Mary Landrieu.
He became famous in 2009 for his videos about the Association of Community Organizers for Reform Now, which ultimately led to its disbandment and O'Keefe paying $100,000 to settle a lawsuit.
Last year, he released tapes he claimed showed Democratic operatives planning to incite violence at a rally for Donald Trump. The Democratic National Committee said the conversations were hypothetical, but one man was dismissed as a result.
We are inside the newsrooms, and that is going to be our next target.
O'Keefe reportedly told Trump supporters last month he had spies "embedded in your institutions," CNN reports.
The release of raw data is reminiscent of WikiLeaks, which noted the leak on Twitter.
When Politico sought comment, a CNN spokesperson said there was "nothing to comment on."
The Associated Press contributed to this report.
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