New York (CNN Business) President Trump's interview with a team of reporters from Time magazine took a sudden turn when he made a comment about prison time for a journalist.

The exchange happened in the Oval Office on Monday. Time published the interview transcript on Thursday evening, and that's when the comment started to get attention.

Here's the background: Trump showed the four reporters a letter that he said was "written by Kim Jong Un. It was delivered to me yesterday. By hand." Then he asked to go off-the-record, so that he could make comments that would not be reported or included in the transcript.

A Time journalist who was in the room evidently tried to take a photo of the letter's contents — and when the interview was back on the record, press secretary Sarah Sanders said, "You can't take a picture of that, sorry."

Later in the interview, the Time team brought up the fact that Trump tried to "limit Mueller's Russia probe to only future election meddling." One of the reporters (the transcript doesn't say who) noted that Trump dictated a letter to a former aide, Corey Lewandowski, "telling him to tell" former attorney general Jeff Sessions "to limit the investigation." The details were included in former Special Counsel Robert Mueller's report.

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