NEW YORK (CBSNewYork/AP) -- WikiLeaks claims it has a "surprise" for Democratic vice presidential nominee Tim Kaine and Democratic National Committee interim chair Donna Brazile.
"We have a surprise in store for (at)Tim Kaine and (at) Donna Brazile," WikiLeaks tweeted.
The organization has been posting thousands of stolen emails from Clinton's campaign manager John Podesta. Cybersecurity experts told CBS News that the Russian hackers who infiltrated Podesta's Gmail account are the same ones who targeted other Democratic groups.
Kaine ignored a reporter's questions about the tweet following a rally in Durham, North Carolina. Kaine has questioned the authenticity of WikiLeaks' releases and said the emails were hacked as part of an effort by the Russian government to try and influence the presidential campaign.
"One of the emails that came up this week referred to me," Kaine told CBS' "Face the Nation" on Sunday. "It was completely inaccurate. And I don't know whether it was inaccurate because the sender didn't know what he or she was talking about it or it had been doctored."
He continued, "Anybody who was going to try to cyber-attack and then try to destabilize an election, you can't trust that they're going to maintain scrupulous honesty about the content of what they're dumping out for the world to see."
The Clinton campaign said in a statement Thursday that Russian President Vladimir Putin is trying to help Republican nominee Donald Trump.
"There is no longer any doubt that Putin is trying to help Donald Trump by weaponizing WikiLeaks," the campaign told CBS News.
Trump has focused on a previously leaked email concerning Brazile, which he said showed that she improperly used her job at CNN to give Clinton advance warning on a question at a debate.
Brazile told Fox News that the emails released by Wikileaks were "doctored."
"I have seen so many doctored emails. I have seen things that come from me at 2 in the morning that I don't even send. There are several email addresses that I once used. This has not been verified," Brazile said.
Brazile denied getting any questions in advance of the debate.
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