Final answer:
Governor Ross Barnett opposed James Meredith's integration and refused to let him register as a student at the University of Mississippi.
Step-by-step explanation:
When Meredith arrived on campus to register at the University of Mississippi (also known as Ole Miss) in 1962, Governor Ross Barnett opposed his integration and refused to let him register as a student. This led to a constitutional crisis, with President Kennedy sending federal marshals to enforce the court order that required the admission of James Meredith.