and mark zuckerberg and the company has set through outthe year, please regulate us, write some laws and rules, you know, that will guide us and put in place a framework. youtube and twitter are also running these ads, as some broadcasters. cnn in this particular case refused to run the ad, because they said it was false. facebook is a lightning rod, but i think we're talking about something much broader here. >> one of the major critics, joe biden's pont, elizabeth warren, has also taken major issue with his this. >> if you're a politician on facebook, they say you can run a false add. that's what she did this week. mark zuckerberg and facebook officially endorsed president