Robinson had a 93-104 record as head coach of the Oregon State Beavers. The team went 16-16 in the last season.
There are three years left on Robinson's contract and the university is likely to owe him $4 million.
In an interview with ABC News in 2010, Robinson described the first time his sister asked him if he'd like to play basketball against her husband. Robinson also said in that interview that the president would regularly call him after big wins and closely followed Oregon State's schedule.
In interviews, Robinson rarely discussed politics but he has described his relationship with his sister as close.
"She's one of my closest, dearest friends," Robinson said in an interview with The Chicago Tribune.