Xavier DeGroat, believed to be the first autistic intern at the White House, said that his experience in the White House means a lot. “It means a lot that I interned at the White House and became the first autistic White House intern,” DeGroat, a 30-year-old autism advocate and student at Northwood University, told Fox News in an interview released on Thursday. The 3-month internship started in September, when DeGroat, the founder of an autism foundation in Lansing, Michigan, was assigned to process letters to the president in the correspondence office. “The White House, at this point, is going to be my permanent institution that I work with to make differences for people on a spectrum,” he told Fox News. “I know this sounds interesting or weird, but have you ever heard of Billy Graham? I want to be considered the evangelist for autism to all presidents in the future.” …