Live updates from Mark Zuckerberg's Congressional testimony

Mark Zuckerberg's moment is finally here.

On Tuesday, Facebook's CEO will make his long-anticipated appearance on Capitol Hill, where he will testify before the Senate's Judiciary and Commerce, Science, and Transportation Committees. 

Zuckerberg will speak about Facebook's data privacy policies, which have come under fire in the wake of Cambridge Analytica, as well as the social network's role in combating election interference. Senators are also likely to ask about a range of other topics, including terrorism, fake news, and the potential for increased regulation. Read more...