...a number of reasons ....maybe he has COVID (Joe did you get your booster?), perhaps pneumonia, bronchitis, common cold?? I agree, no reason to be concerned. None in the least.
Psaki dismisses concerns over Biden's recent coughing: Not an 'issue of concern'White House Press Secretary Jen Psaki dismissed concerns about President Biden’s recent coughing during speeches, saying that she is not concerned when asked during a White House Press Briefing Thursday.
"Many of us were in the East Room watching the president, we’ve seen him on many occasions where he had a repeated cough. What is the situation with that cough and is it a concern?" NBC News’ Kelly O’Donnell asked Psaki.
"I don't think it's an issue of concern," Psaki said. "There's a range of reasons why we need to clear our throat or have a light cold."
https://www.foxnews.com/politics/psaki-dismisses-concerns-over-bidens-recent-coughing-not-an-issue-of-concern