"There is no greater assault on our core values than the rampant efforts to restrict the right to vote," said former president Bill Clinton in a video announcing the new push.
Democrats and Republicans have long sparred over state voter ID laws. The GOP argues these laws are necessary safeguards while Democrats say they are designed to restrict turnout.
In a briefing with reporters, Democratic National Committee Chair Debbie Wasserman Schultz said the committee has a moral imperative to launch its new project.
"We are not launching this project because the Democratic Party has a problem," she said. "We are launching this project because we believe it's our mission morally and also mechanically."
The DNC declined to say how much money it will spend on the new push.