The Constitution limits the president's power to wage war but presidents have gotten around that and Congress has only rarely asserted itself successfully.
NPR's Michel Martin talks with the Cato Institute's Gene Healy about the back-and-forth between Congress and the White House over the president's ability to take military action against Iran.
The rapid change has raised concern among those who have served on the NSC. They believe the president needs a wide range of experts to give advice on the potential consequences of major actions.
FBI Director Christopher Wray outlined steps the bureau is taking to ensure it doesn't make the same mistakes it did when it wiretapped Carter Page during the 2016 election.
NPR's Ari Shapiro talks to retired Adm. James Stavridis, who was also formerly supreme allied commander Europe of NATO, about President Trump's request for NATO to be more involved in the Middle East.
In a letter to House Democrats, the speaker also said she plans to appoint impeachment managers to present the House's case. On the other side, a Trump adviser says his team is ready to go on offense.
The author and spiritual leader garnered curiosity and lots of attention in early debates. In a letter to supporters on Friday, she wrote, "I don't want to get in the way of a progressive candidate."