Thunberg, who was named
Time magazine's Person of the Year earlier this week over Trump, has
sternly castigated world leaders for not doing enough to combat climate change and memorably stared down Trump at the UN General Assembly in September. She has been
open about her diagnosis of Asperger's, calling it a
"superpower" that helps her activism.
"So ridiculous. Greta must work on her Anger Management problem, then go to a good old fashioned movie with a friend! Chill Greta, Chill!"
Trump wrote Thursday morning, responding to a tweet congratulating Thunberg on being named Person of the Year.
Trump frequently attacks and mocks political enemies on Twitter, and
previously went after Thunberg in September, though his Thursday morning broadside was still jarring coming from a sitting US president against a teenager.
Following the President's tweet, Thunberg updated her Twitter bio to reflect Trump's comments: "A teenager working on her anger management problem. Currently chilling and watching a good old fashioned movie with a friend."
CNN