This morning I posted that Facebook and Twitter have taken the position that they will accept political ads that contain lies because they don't feel it's in their best interest to fact check claims made in the ads.

Presidential candidate Elizabeth Warren put Facebook to the test by running an ad on Facebook falsely claiming that Facebook and its CEO Mark Zuckerberg have publicly announced their endorsement of Trump for president. Facebook said it will let the ad run. "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," Facebook spokesperson Andy Stone told CNN.

"Either Facebook doesn't touch the ad and the ad is therefore noteworthy, or they touch the ad and it's noteworthy," Dave Karpf, an associate professor of media and public affairs at George Washington University, told CNN. "It's a smart tactical move."

From CNN: