A high-profile member of former President Barack Obama’s administration is joining the University of Chicago Law School.Valerie Jarrett, Obama’s longest-serving senior adviser, has been appointed a distinguished senior fellow, beginning Jan. 1.“I am both delighted and honored to return to the University of Chicago as a [d]istinguished [s]enior [f]ellow, and embark on this new journey with the students, faculty and wider Chicago community,” Jarrett said in a statement.“With a rich history, a …