The website WikiLeaks on Saturday released yet another batch of hacked emails said to be linked to Hillary Clinton's presidential campaign. U.S. officials have blamed Russia for the breach. The Obama administration is now vowing to respond. Washington, D.C. bureau reporter Geoff Bennett filed this report.

The Obama administration is said to be considering an unprecedented cyber attack against Russia. 

U.S. intelligence officials say it’s retaliation for alleged Russian interference in the the 2016 presidential election.  

"I think the government has announced, there are concerns that there are some efforts to try to interfere in the electoral process," said CIA Director John Brennan.

U.S. Officials Say Signs Point to Russia

The intelligence community believes Russia is using the website Wikileaks to release emails stolen from the Gmail account of Hillary Clinton's campaign chairman, John Podesta.

Supporters of the Democratic presidential nominee are framing the drip of e-mails as a national security threat.

"This is a significant and unprecedented attack," said Matt Olsen, a former director of the National Counterterrorism Center, told CNN. "It's an attack on our democratic institutions. So, from my perspective, it's not just a campaign issue, it's a national security issue.”

Olsen now serves as an informal national security advisor to the Clinton campaign.  

Pence Breaks with Trump Over Russia's Involvement

But it’s not just Democrats who are painting Russia as the culprit.

"I think there's more and more evidence that implicates Russia and there should be serious consequences," said Republican vice presidential candidate Mike Pence Sunday on NBC News' Meet the Press.

Pence contradicted his running mate, Donald Trump, who has cast doubt on Russia's involvement in the email hacks.

Wikileaks Denies Russian Links

Wikileaks has denied any connection to or cooperation with Russia.

Still, the White House says it’s planning a "proportional" response, which Russia’s foreign minister has dismissed.

"If they decided to do something, let them do it," said Sergey Lavrov in an interview with CNN. "But to say Russia is interfering with United States domestic matters is ridiculous."

Wikileaks says it has roughly 50,000 of Podesta’s emails. So far, it's published about 10,000 of them, which means Clinton campaign officials are bracing for more leaked emails through Election Day.