Warren Buys Facebook Ads That Claim Zuckerberg Backs Trump

Elizabeth Warren is buying ads on Facebook that falsely claim Mark Zuckerberg has endorsed President Donald Trump -- a ploy used to showcase that ads posted by politicians need to be fact-checked.

The Democratic presidential candidate’s campaign sponsored the posts that were blasted into the feeds of U.S. users of the social network, pushing back against Facebook’s policy to exempt politicians’ ads from its third-party fact-checking program.