First lady Jill Biden appeared in an episode of Sesame Street that aired Thursday, helping the characters as they learn about jobs they can have. The White House announced in February that Biden would tape episodes for the show and for “social impact and military family initiatives” for Sesame Workshop, the nonprofit organization responsible for producing the show. In a clip, the first lady meets with Elmo, Abby and Tamir before the three of them go to school to learn about jobs. She tells Elmo that he can have more than one job if he wants, as she serves as...