PHILADELPHIA — Hillary Clinton campaign chairman John Podesta on Tuesday said the campaign has not been warned by the FBI that it may have been breached by the same hackers who dumped Democratic National Committee emails to WikiLeaks last week, but he said, “We know pretty well now that the attacks came from [Russia]," following expert analyses.

Speaking at a Bloomberg Politics breakfast with reporters here, Podesta said he is confident in the campaign’s own “robust security” system.

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He then turned to the connection between Republican nominee Donald Trump and Russia.

“He certainly has a bromance with Mr. Putin, so I don’t know,” said Podesta, asked about Trump’s relationship with Vladimir Putin in the wake of the DNC leaks.

“I think that the Russians do have a history of interfering with Democratic elections in Europe,” he added. “I think it would be unprecedented in the United States."