Jack Dorsey and Sheryl Sandberg

Twitter's CEO, Jack Dorsey, and Facebook's COO, Sheryl Sandberg appear before the Senate Intelligence Committee. They will talk about their role in protecting the integrity of November's midterm elections. The Facebook and Twitter executives plan to defend their companies in two congressional hearings, arguing they are aggressively trying to root out foreign actors who want to do the United States harm just weeks before the midterm elections.