The National Security Agency chief said "a nation-state" leaked emails to WikiLeaks.
Adm. Michael Rogers, the head of the NSA and U.S. Cyber Command, told a Wall Street Journal forum that leaked emails from John Podesta, Hillary Clinton's campaign chairman, were leaked intentionally by "a nation-state."
He did not specify which nation, but Russia was accused by U.S. intelligence agencies of interfering with the election, including the major Democratic National Convention leak this summer.
James Bell, a BuzzFeed reporter who used to work for WikiLeaks, spelled it out.
"The campaign was unable to invoke evidence about our publications because none exists."
Julian Assange, founder of WikiLeaks, has repeatedly denied any ties to Russia, saying there is no evidence.
"The Clinton campaign... pointed to unnamed sources or to speculative and vague statements from the intelligence community to suggest a nefarious allegiance with Russia," he wrote.
Trump critics jumped on the news.
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