He has come under intense scrutiny following Constitutional Court and Supreme Court rulings last month that his education documents did not meet election requirements. The resignation comes at a turbulent time for Prabowo, who faces a growing rift with his predecessor Joko Widodo. By Ananda Teresia JAKARTA, Nov 11 (Reuters) - Indonesia's Vice President Gibran Rakabuming Raka has resigned, an aide said on Wednesday, a move that threatens to split a key.