Bannon oversaw Cambridge Analytica Facebook data collection01:28
Former Trump chief strategist Steve Bannon oversaw Cambridge Analytica's data collection on Facebook while he was a top executive at the firm, reports the Washington Post.
Kirsten Gillibrand holds first 2020 campaign event03:16
Sen. Kirsten Gillibrand to discuss 2020 run with Maddow Wednesday00:19
Legal analyst: Mueller may consider obstruction as part of collusion12:04
María Teresa Kumar: For Dems to win 2020, House Dems have to put points on the board09:17
Republican Mark Harris defiant despite election fraud02:03
Warren kicks off 2020 taking voters' questions11:48