Story highlights Bernie Sanders says the hacked DNC emails show the party wasn't fair in the primary process

Sanders emphasized his support for Hillary Clinton over Donald Trump

Philadelphia (CNN) Bernie Sanders says the release of Democratic National Committee emails that show its staffers working against him underscore the position he's held for months: Party Chairwoman Debbie Wasserman Schultz needs to go.

"I don't think she is qualified to be the chair of the DNC not only for these awful emails, which revealed the prejudice of the DNC, but also because we need a party that reaches out to working people and young people, and I don't think her leadership style is doing that," Sanders told CNN's Jake Tapper Sunday on "State of the Union," on the eve of the Democratic National Convention in Philadelphia.

As a result of the leaks, Wasserman Schultz has been removed as a speaker at the DNC this week, a decision reached by party officials Saturday, a top Democrat said. She is expected to gavel the convention in and out but that's it.

"She's been quarantined," another top Democrat said, following a meeting Saturday night.

Among the emails included in the release by hackers Friday were plots by DNC staffers to plant questions about Sanders' Jewish faith ahead of the Kentucky and West Virginia primary contests.

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