Warner hopes GOP colleagues 'stick to their guns' on supporting Mueller
Sen. Mark Warner (D-Va.) joins Chuck to discuss Jeff Sessions' exit from the DOJ and what it means for the future of the Mueller investigation.
Congratulations to the NBC News Capitol Hill team!00:45
2020 vision: Two Senate Democrats eye presidential run01:39
Higgins: Consolidation of House Dem leadership 'marginalizes' regular members07:03
New Dems are more diverse than ever, GOP more white and male01:07
Lewandowski: Trump questioning staff after GOP midterm losses09:46
Lewandowski on Trump reelection: 'Stronger with Republicans than he's ever been'01:24