NPR’s Ari Shapiro talks with Robert Costa of The Washington Post about Stefan Halper, the FBI informant and Cambridge University professor who met with several advisers to the Trump campaign in 2016.

Article source: https://www.npr.org/2018/05/22/613449461/washington-post-reporter-discusses-fbi-informant-who-met-with-trump-campaign?utm_medium=RSS&utm_campaign=news