Massachusetts senator and presidential candidate Elizabeth Warren continued her campaign against Facebook on Sunday, one day after she posted false advertisements to Facebook on Saturday to see if she could prove to voters that the social media platform values profit over facts. "Facebook holds incredible power to affect elections and our national debate. They’ve decided to let political figures lie to you -- even about Facebook itself -- while their executives and their investors get even richer off the ads containing these lies," Warren wrote in a series of Twitter posts Saturday criticizing Facebook and its founder, Mark Zuckerberg. The...