David Letterman revealed that he’d like to sit down for an interview with President Trump in order to ask him “what went wrong.”

Letterman hosted NBC’s “Late Night With David Letterman” from 1982 to 1993 before pivoting to CBS for “The Late Show With David Letterman” from 1993 to 2015. In that time, he interviewed Trump more than 30 times prior to his candidacy and subsequent victory in the 2016 presidential election.

Letterman, who now hosts his Netflix series “My Next Guest Needs No Introduction,” sat down with The Hollywood Reporter’s “Awards Chatter” podcast earlier this month to discuss his experience interviewing Trump and whether he thinks the former "Apprentice" host is acting like himself now that he's in the White House.

“More than 30!?" he exclaimed when told how many times he’d interviewed Trump. “Wow! You’re welcome, America.”

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The 72-year-old host got serious explaining that he had no idea that Trump was more than a reality star.

“I think he just liked being on TV. I had no sense that he was the soulless bastard that he’s turned into,” he said.

Former "Late Show" host David Letterman received the Mark Twain Prize for American Humor in October. The event was broadcast on PBS on Monday night. (Reuters)

Letterman continued, "Everybody says, 'Oh, wouldn't you like to talk to Donald Trump [today]?' And I would. I would just like to say, 'Don, it's Dave. Remember me? I want to talk to the real Donald Trump.' Because I now don't know which is the real Donald Trump, and if the Donald Trump that I was talking to [back then] was the real Donald Trump, how do you get to be the guy he is now? Politics notwithstanding — let's just say everything is great and he's done a great job, but he still behaves the way he behaves — who behaves like that?!"

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The comedian emphasized that he didn’t think Trump would ever be considered more than a person known for his wealth.

"He used to be kind of like the boob of New York that pretended to be wealthy, or we thought was wealthy, and now he's just a psychotic. Is that putting too fine a point on it?" He added, "I don't even care if it's recorded, I would just like to talk to the guy, because, as I said before, he knows me, I know him — what the hell went wrong?!"

Although Letterman clearly has a lot to say about the president, he previously noted that he’s ready to “stop yacking” about Trump in favor of focusing on a 2020 win.

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“As an American, I don't like this man as a president of our country. I love being an American, but I don't feel he represents me and I don’t like that. Even with other presidents that I've disagreed with, politically, I felt like, OK, I can live with their representation, but I'm sick and tired of everybody wringing their hands about this… let's just settle this at the next election,” he said in the interview. “Let’s just stop yacking about what a goon he is.”