Story highlights Bernie Sanders speaks to nearly 4,000 supporters at the second annual "People's Summit"

Sanders: "... Trump didn't win the election, the Democratic Party lost the election"

Chicago (CNN) Bernie Sanders' permanent "political revolution" rolled into Chicago on Saturday night, as the Vermont senator called on progressive activists gathered here to beat back President Donald Trump's agenda while remaking the Democratic Party.

Speaking to a crowd of buzzing supporters in former President Barack Obama's adopted hometown, Sanders ripped Trump's "incredible hypocrisy" and called the President a demagogue who makes "even a very conservative president like George W. Bush" appealing in comparison.

But it was his unsparing assessment of the party whose nomination he sought in 2016 that set off an audience of nearly 4,000 mostly dedicated "Berniecrats."

The theater at the #PeoplesSummit in Chicago is packed waiting for Bernie Sanders to talk. Someone's popular. pic.twitter.com/21XrQfL9i3 — Jack Smith IV (@JackSmithIV) June 11, 2017

"I am often asked by the media and others, 'How did it come about that Donald Trump, the most unpopular presidential candidate in the modern history of our country, won the election?'" he offered teasingly as chants of "Bernie would have won" filled the hall.

"My answer is that Trump didn't win the election, the Democratic Party lost the election," Sanders said, reviving his own past criticisms

Read More