After spending much of this year apologizing for Facebook's many missteps, CEO Mark Zuckerberg was defiant in an exclusive interview with CNN Business on Tuesday.

Amid yet another scandal, Facebook is facing calls from investors and critics to shake up its leadership.

In an exclusive interview, Mark Zuckerberg talks with CNN's Laurie Segall about why he won't step down as Facebook's chairman and why he wants Sheryl Sandberg to stay at Facebook.

In an exclusive interview, Mark Zuckerberg tells CNN's Laurie Segall what he's learned after hiring the controversial PR firm Definers.

Facebook and its CEO, Mark Zuckerberg, have spent much of Thursday swinging back after a New York Times investigation published Wednesday suggested that the company had not been forthcoming enough about Russian interference on its platform and reported that it had hired a firm that dug up dirt on its competitors.