President Trump won't even tell his eldest son what did or did not happen during the Roswell "UFO incident" of 1947.

During a Father's Day interview on Thursday evening, Donald Trump Jr. pushed his dad for answers, telling him that "the only thing I want to know [is] … would you ever open up Roswell and let us know what's really going on there?"

"So many people ask me that question," Trump said, adding: "I won't talk to you about what I know about it, but it's very interesting."

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