The former first lady came to the defense of Thunberg early Friday after President Donald Trump attacked the 16-year-old environmental activist from Sweden on Twitter.
Donald Trump Jr., the president’s eldest son, also criticized the accolade, calling it “a marketing gimmick,” as did other high-profile conservative figures.
Obama responded with a heartfelt message.
“Don’t let anyone dim your light,” she wrote to Thunberg. “Like the girls I’ve met in Vietnam and all over the world, you have so much to offer us all. Ignore the doubters and know that millions of people are cheering you on.”
Thunberg, meanwhile, responded to Trump’s criticism by changing her bio on Twitter: