The ruling prompted the formation of an ethics panel tasked to investigate the conduct of the court's nine judges, including chief justice Anwar Usman, who is the president's brother-in-law and Gibran's uncle.
The head of the panel, former constitutional court judge Jimly Asshiddiqie, said that Anwar had been deemed the "most problematic".
Asked by a journalist whether that meant he had been found guilty, Jimly replied: "Yes, of course."
Speaking to reporters after he was questioned by the panel on Friday, Anwar said he was ready for its decision.
Defence Minister Prabowo Subianto named Gibran, the mayor of Surakarta, as his vice presidential running mate days after the decision.
Persons:
Joko Widodo's, Gibran Rakabuming Raka, Anwar Usman, Jimly Asshiddiqie, Anwar, Jimly, Prabowo Subianto, Gibran, Stanley Widianto, Kate Lamb, Alison Williams
Organizations:
Defence
Locations:
JAKARTA, Surakarta