Steve Kornacki and The Root's Jason Johnson discuss the high support for Joe Biden among black voters as other Democratic candidates are trying to chip away at his lead. 

Former Undersecretary of State Rick Stengel, former Congresswoman Donna Edwards, Bloomberg Opinion's Tim O'Brien, and The Root's Jason Johnson on how the number of 2020 Democratic contenders might drastically reduce before the next debate in September. 

Washington Post reporter Phil Rucker, PBS NewsHour correspondent Yamiche Alcindor, former Congresswoman Donna Edwards, Bloomberg Opinion's Tim O'Brien, and The Root's Jason Johnson on the mounting anticipation for the president's rally following weeks of racial tension. 

Former Undersecretary of State Rick Stengel, former Congresswoman Donna Edwards, Bloomberg Opinion's Tim O'Brien, and The Root's Jason Johnson on former VP Biden battling through another debate, but viewers are still waiting for his first face-off with Senator Elizabeth Warren.