Historic debate could reset campaign norms04:35
Michael Beschloss, NBC News presidential historian, talks about the unprecedented nature of the first presidential debate of 2016 and how Donald Trump could change some of what we expect from presidential candidates.
Gillibrand talks political transformation and the road to 202008:14
Senator Gillibrand: Each Trump nominee 'wasn't worthy of my vote'07:36
Alarm rises as Trump behavior aligns with Putin's fondest wishes10:25
Brexit vote fails by historic margin with future unclear03:20
11 Republican senators break with Trump in rebuke on sanctions11:02
Schumer: Barr fudged his answers on respecting Mueller probe07:43