Donald Trump insisted Thursday that Hillary Clinton’s private email server was hacked, but could not say where he learned the information.
"I think I read that," Trump said. "And I heard it, and somebody--"
Trump was pressed for evidence to back up his claims during an interview with NBC Nightly News’ Lester Holt, which will air Thursday.
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"—that also gave me that information. I will report back to you," Trump said.
Trump’s comments come after he argued that Clinton’s server, which she used as secretary of state, left her vulnerable to blackmail if she were president.
Clinton’s campaign said there is no evidence that her server was ever hacked. U.S. officials have also told NBC News there is no evidence anyone hacked into the server, although there was evidence of phishing attempts.