https://www.siliconvalley.com/2019/10/13/elizabeth-warren-escalates-facebook-ad-feud/

A days-long feud between Sen. Elizabeth Warren and Facebook intensified over the weekend as Warren openly accused the company of “taking money to promote lies.”

Warren, a leading Democratic 2020 candidate, has taken aim at the social media giant over its role in spreading disinformation against her and other candidates. Her campaign ran an ad on Facebook this past week that contained a deliberate lie to draw further attention to the issue.