Bernie Sanders Regains Access To DNC's Voter Database After Sanders-Clinton Data Breach

After his campaign sued the Democratic National Committee, Bernie Sanders regained access to DNC voter information on Saturday just hours before the Vermont politician is slated to face-off with Hillary Clinton in the third Democratic presidential debate. The Sanders campaign was denied access to voter databases after accusations from the Clinton camp surfaced about an alleged data breach, in which the Sanders campaign was able to access information from the Clinton campaign. The two Democratic candidates are expected to take their behind-the-scenes drama to Saturday night's debate, where Sanders will now have to cope with his first campaign scandal.

A spokesperson for the Sanders campaign told ABC News that DNC voter files were available to campaign staffers Saturday morning. DNC Chair Rep. Debbie Wasserman Schultz also issued a statement Saturday saying the DNC was restoring access to the voter database:

The Sanders campaign has now complied with the DNC’s request to provide the information that we have requested of them. Based on this information, we are restoring the Sanders campaign’s access to the voter file, but will continue to investigate to ensure that the data that was inappropriately accessed has been deleted and is no longer in possession of the Sanders campaign.

"The fact that data was accessed inappropriately is completely unacceptable, and the DNC expects each campaign to operate with integrity going forward with respect to the voter file," Wasserman Schultz added. She said the Sanders campaign was fully cooperating with the DNC's ongoing investigation of the alleged data breach.

The DNC suspended access to the voter database earlier this week, claiming that the Sanders campaign accessed data from the Clinton campaign. The Sanders camp says the data breach was caused by a glitch in the firewall that blocks campaigns from seeing one another's confidential data.

In a statement released Friday, Sanders campaign manager Jeff Weaver said staffers were aware of the glitch two months ago, and reported it to the DNC. "We were concerned that our data could be compromised and we were assured at the time the firewall would be restored," Weaver said in the statement. "Instead, we found out two days ago that once again, this sensitive and important data was compromised because the DNC and its vendor failed to protect it."

Weaver called the DNC's response — including suspending the voter database for the Sanders campaign — an "overreaction." However, the Sanders campaign manager did admit that some staffers "irresponsibly" accessed information from the Clinton campaign. "That behavior is unacceptable to the Sanders campaign and we fired the staffer immediately and made certain that any information obtained was not utilized," Weaver said.

Clinton campaign spokesman Brian Fallon also said in a statement on Friday:

We are pleased that the Sanders campaign has agreed to submit to an independent audit to determine the full extent of the intrusion its staff carried out earlier this week, and also to ensure that Sanders' voter file no longer contains any of the proprietary data that was taken from us. We believe this audit should proceed immediately, and, pending its findings, we expect further disciplinary action to be taken as appropriate.