President Donald Trump told an audience about a close friend who ranks among the world’s most successful people yet cannot speak in front of crowds due to stage fright.

Speaking at a public event, Trump explained that the friend, whom he called a very brilliant individual, experiences what he termed lockjaw whenever more than about ten people are present. Trump noted that the same person destroys people for a living in his professional work, underscoring the contrast between the friend’s private capabilities and his public speaking difficulties.

Trump said he once asked the friend directly what went wrong with his head. He presented the anecdote as an observation about an otherwise highly accomplished person who remains unable to address groups larger than a small handful of listeners.

The remarks focused solely on the friend’s professional success and personal limitation, with Trump characterizing him as probably one of the most successful people in the world. No further identification of the individual or additional context about the conversation was provided in the remarks.

Supporters present at the event listened as Trump shared the story from the presidential podium.