MSNBC MSNBC Live With Hallie Jackson August 22, 2019 14:35:00
Nomination, what they have done in many cases significantly changed the debate or changed the contours of the election going forward. >> you heard the last bit of the conversation we had with my colleague steve kornacki how in history primary challengers often don't work out well for the president who doesn't good on to win re-election. are you comfortable to know if you do issue a primary challenge, it could end up putting somebody like joe biden, bernie sanders or elizabeth warren in the oval office? >> how many angels dance on the head of a pin? i don't know and i don't worry about it. it's...