All eyes this week were on former FBI Director James Comey, who testified Thursday before the Senate Intelligence Committee. Comey had been fired from his post last month by President Trump amid an ongoing investigation into possible collusion between the Trump campaign and Russia, and his testimony shed significant new light on that controversy and others. Also this week: the president continued his feud with London's mayor, criticized his own Justice Department attorneys, and more. Face the Nation Moderator John Dickerson looks back at the week in review.