Melissa Harris-Perry makes the case that regardless of the outcome of the Republican Primary, frontrunner Donald Trump is setting the idea agenda for the Republican candidates by sheer force of his personality and assertions.Aug. 18, 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