Facebook CEO Mark Zuckerberg replied, “I’ll have my team get back to you,” “I’ll follow up with you on that,” or some other variation of the same answer at least 21 times during his hearing before the Senate Judiciary and Commerce Committees, Tuesday.

Appearing before the Senate, Mark Zuckerberg admitted that Facebook is responsible for content posted on their platform.

While testifying before the Senate, Facebook CEO Mark Zuckerberg refused to confirm that Facebook tracks users activity even after they leave the website.