Patrick Murray, Monmouth University polling director, talks with Rachel Maddow about Donald Trump's rapid rise in the polls over the past five weeks, and how Trump's anti-Muslim proposal appears to have improved his standing with Republican voters.Dec. 15, 2015
UP NEXT
'How did Dr. Frankenstein deal with his monster?'; Trump era GOP struggles with old school politics
05:34
'It's like the whole system is busted': Does the Trump era mark 'the end of politics'?
08:46
Maddow: DeSantis hurting his own party with lies about abortion
03:20
Newsom pans GOP debate: 'More disappointing than I was expecting'
07:37
'One of the more dangerous things' about Trump: Former aide on Trump need for attention
09:39
'Reckless and careless': former Trump White House aide describes mishandling of documents