Bernie Sanders files lawsuit to regain access to DNC voter database

Sen. Bernie Sanders' campaign manager Jeff Weaver, speaks during a news conference at the Bernie 2016 Campaign Office in Washington, Friday, Dec. 18, 2015. Weaver says the Democratic National Committee is "actively attempting to undermine"... (Copyright by WSLS - All rights reserved)

WASHINGTON (AP) - The presidential campaign of Vermont Senator Bernie Sanders has filed a lawsuit in federal court seeking to regain access to a Democratic National Committee voter database.

The DNC temporarily banned the campaign this week from voter information after Sanders' staff improperly accessed data compiled by rival Hillary Clinton's campaign.

The lawsuit says the campaign is now "sustaining irreparable injury and financial losses."

Sanders campaign manager Jeff Weaver said earlier Friday the DNC was "taking our campaign hostage" by preventing it from accessing the data.

He threatened the lawsuit if the party didn't back down.