Rachel Maddow notes that as the polling in the Democratic primary race show Bernie Sanders closing the gap with Hillary Clinton, the tone of the campaigns has become considerably more contentious.Jan. 14, 2016
UP NEXT
More than mere media bias: How New York prosecutors see Trump's scheme with the National Enquirer
06:15
The real DOJ corruption scandal at the heart of Trump's criminal trial in New York
11:59
Bank with a checkered past and a deep history with Trump raises red flags
07:23
Why Republicans are hiding behind the politics of personality
04:23
Media whiffs on the news in Trump's abortion statement as Dobbs becomes weaponized on global scale
09:17
U.S. foes exploit Trump's divisiveness with fake MAGA accounts; China adopts Russian tactics