I thought Bernie's message was that the people at Trump's rallies were not really racists or Neo-nazis, but that they were justifiably angry, and that Democrats need to get away from identity politics and attacking Trump voters as racists.
http://thehill.com/blogs/blog-briefing-room/news/326820-sanders-defends-trump-voters-i-dont-think-theyre-racists
Vermont Sen. Bernie Sanders (I) on Friday defended voters of President Trump, saying that the election was Democrats' to lose and that the party needs to better represent the working-class voters who supported Trump and other GOP lawmakers
"Some people think that the people who voted for Trump are racists and sexists and homophobes and deplorable folks. I don't agree, because I've been there. Let me tell you something else some of you might not agree with, it wasn't that Donald Trump won the election, it was that the Democratic Party lost the election," Sanders said while speaking at an Our Revolution rally in Boston with fellow Sen. Elizabeth Warren (D-Mass.).
Sanders went on to say that a "fundamental restructuring of the Democratic party" was needed to win future elections and that problems with party's current setup is why many were quick to support Trump in the election, not because of some of the rhetoric on the campaign trail.
"We need a Democratic Party that is not a party of the liberal elite but of the working class of this country, we need a party that is a grassroots party, where candidates are talking to working people not spending their time raising money for the wealthy and the powerful," Sanders said. "And when we do that, when we transform the Democratic Party, we transform America."