@aboveaverage - Malia Obama had a summer internship with the state dept that she (or possibly her parents) arranged directly - not through a formal program. (She would have needed to do that in any case because of all sorts of security concerns unique to her situation as the daughter of a then-sitting US President.)
But you can find out about state dept opportunities here: https://www.usajobs.gov/Help/working-in-government/unique-hiring-paths/students/