Sanders Apologizes to Clinton Over Accessing Voter Data

MANCHESTER, New Hampshire -- Bernie Sanders apologized to Hillary Clinton in the third Democratic debate hosted by ABC News after his staffers accessed Clinton's voter data.

"Yes, I apologize," he said when asked whether Clinton was owed an apology. "Not only do I apologize, I want to apologize to my supporters. This is not the kind of campaign that we run. If I find anybody else involved in this, they will be fired."

"I very much appreciate that comment, Bernie," Clinton responded. "We should move on because I don't think the American people are all that interested in this. I think they're more interested in what we have to say about all the big issues facing us."

But Democrat Martin O'Malley wasn't having it at the debate. "David, for crying out loud, our country has been attacked," he said, pointing to issues that he said were more important. "Instead, we're listening to the bickering back and forth. Maybe that's normal politics in Washington."

Sanders' remarks come after a bug in the firewall of the Democratic Party's voter data software allowed four Sanders staffers to access files belonging to the Clinton campaign. One Sanders staffer was fired after the incident came to light late Thursday night.

In response, top Democrats suspended Sanders' access to the party's massive database, including its own data, prompting the Bernie Sanders 2016 to sue the Democratic National Committee in federal court.

Early Saturday morning, the DNC restored the Sanders team's access to its data, but the lawsuit is still on the books and investigations are ongoing.

Clinton's staff have called the actions an "egregious breach of data and ethics," but the Sanders campaign has accused the DNC of being in cahoots with Clinton.

Get real-time updates as this story unfolds. To start, just "star" this story in ABC News' phone app. Download ABC News for iPhone here or ABC News for Android here.