WASHINGTON (Reuters) -Hackers broke into the X account of Sesame Street character Elmo and posted antisemitic and racist messages, the makers of the children's TV show said on Monday. The Sunday posts, which have been deleted, called for violence against Jews, insulted President Donald Trump and demanded the release of government files on accused sex trafficker Jeffrey Epstein and his alleged clientele. Elmo, a cheerful red Muppet, has more than 650,000 followers on X.