Every day is a test of the president's ability to succeed as a leader. This week, faced with a test of his moral instinct, President Trump, who built his reputation on bluntness about essential truths, could not speak clearly about racism and bigotry, raising fresh questions about his moral compass, discipline and whether he has irreparably crippled his ability to govern a diverse nation. Plus, the departure of yet another top White House aide. Face the Nation moderator John Dickerson looks back at the week in review.