India, June 14 -- President Donald Trump turned 80 on June 14 to much fanfare. But former Fox News host Tucker Carlson thinks age is one topic Trump prefers not to discuss.

Speaking to The New York Times in an interview published on Trump's birthday, Carlson said the president becomes uncomfortable when conversations turn to growing older. The comments came as Trump celebrated the milestone while continuing a packed public schedule and preparing for a UFC event at the White House.

Tucker Carlson, who spent years around Trump before their recent disagreement over the Iran conflict, told The New York Times that Trump often points to older people he admires when the subject of age comes up. According to Carlson, Trump regularly talks about...