Democratic presidential candidate, former Vice President Joe Biden speaks May 18,2019, during a campaign rally at Eakins Oval in Philadelphia. North Korea on Wednesday, May 22, 2019, labeled Biden a “fool of low IQ” and an “imbecile bereft of elementary quality as a human being” after the Democratic presidential hopeful during a recent speech called North Korean leader Kim Jong Un a tyrant. (AP Photo/Matt Rourke, File)