Bernie Sanders’ campaign is firing back at the Democratic National Committee over a data breach involving Hillary Clinton's campaign. The DNC says they are suspending access to its voter database after a software error allowed one of Sanders’ campaign staffers to view Clinton’s private campaign data. A Sanders staffer was fired over the breach which they say happened because of a firewall problem.

Sanders campaign manager Jeff Weaver characterized the DNC’s move as an overreaction and complained that the suspension has “shut down access” to their campaign’s information. Weaver also accused the DNC of holding the Sanders campaign data hostage and has threatened legal action.

Senator Sanders has been the strongest competitor to Hillary Clinton’s presidential ambitions even as Clinton continues to lead in national polls.  

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