President Donald Trump tweeted telling Greta Thunberg, the 16-year-old Swedish climate activist, to “chill.”

Trump wrote “so ridiculous” in response to a tweet from actress and producer Roma Downey congratulating Thunberg on being named Time magazine’s 2019 person of the year.

“Greta must work on her Anger Management problem, then go to a good old fashioned movie with a friend!” the president continued. “Chill Greta, Chill!”

Read the rest of the story at ABC News.