Dr. Anthony Fauci said he would not continue in his role of White House chief medical adviser if former President Donald Trump were to return for a second presidential term.

CNN’s Jim Acosta asked Fauci Sunday night if he would stay on under another Trump administration.

“Uh, well, no,” Fauci replied with a chuckle.

Acosta also asked the National Institute of Allergy and Infectious Diseases director if he would be confident in Trump’s ability to lead the nation through a pandemic, such as COVID-19, again.

“If you look at the history of what the response was during the administration, I think, you know, at best, you could say it wasn’t optimal,” Fauci replied. “I think just history will speak for itself about that. I don’t need to make any further comment on that, Jim. It’s not productive.”

WATCH: FAUCI SAYS NOT ‘GOING TO BE ABLE TO DETERMINE’ IF LOCKDOWNS WERE WORTH IT

Acosta clarified that Fauci would “not serve with Trump again,” to which Fauci said, “Right, for sure. Yeah.”

In March, Fauci hinted at retirement, saying, “I can't stay at this job forever. Unless my staff is going to find me slumped over my desk one day. I'd rather not do that.”

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Fauci has served as a public health expert in various capacities for more than 50 years and has advised every president since Ronald Reagan.