The Root's Jason Johnson, MSNBC's John Heilemann, MoveOn's Karine Jean-Pierre, and National Action Network's Reverend Al Sharpton react to Trump's tweet where he claims that the moon is part of Mars. 

The Root's Jason Johnson, MSNBC's John Heilemann, MoveOn's Karine Jean-Pierre, and National Action Network's Reverend Al Sharpton on Mayor Pete Buttigieg's latest media appearance and if his efforts to win over African-American voters are working. 
 
The Root's Jason Johnson, MSNBC's John Heilemann, MoveOn's Karine Jean-Pierre, National Action Network's Reverend Al Sharpton, former U.S. attorney Joyce Vance and former assistant director at the FBI Frank Figliuzzi on Trump lashing out at Nancy Pelosi over her comments that she'd rather see him serve time in prison... 

The Root's Jason Johnson, MSNBC's John Heilemann, MoveOn's Karine Jean-Pierre, and National Action Network's Reverend Al Sharpton on the field of Democratic candidates going after their party's frontrunner as he hangs onto a sizable lead.