A back-and-forth between President Trump and Myeshia Johnson, the widow of a U.S. soldier killed in Niger this month, has consumed the news cycle for the past week. But what actually happened in Niger? And Senator Jeff Flake, a Republican from Arizona, delivered an impassioned rebuke to President Trump as he announced he would not seek re-election. Guests: Helene Cooper, a Pentagon correspondent for The New York Times. For more information on today’s episode, visit nytimes.com/thedaily.