2020 Dem Beto O'Rourke drops from presidential race


2020 Candidate Beto O’Rourke has announced he is dropping out of the presidential race. MSNBC’s Rev. Al Sharpton joins Ari Melber to discuss O’Rourke’s breaking news, a potential impeachment trial weeks away from the Iowa caucus and the fight to hold Facebook accountable for their role with political advertising.