> Responding to Ms Warren’s adverts, a Facebook spokesperson told CNN: “If Senator Warren wants to say things she knows to be untrue, we believe Facebook should not be in the position of censoring that speech.”

Well, at least they're principled about it. They'll take your money either way.

CNN notably did not run the ad:

> CNN requested that the advertiser remove the false graphic that says the mainstream media is ‘fake news.’ The mainstream media is not fake news, and therefore the ad is false,” the network said at the time. “Per our policy, it will be accepted only if that graphic is deleted.

Which seems like an an awfully self-interested reason to reject the ad.