Because he was not in Parliament of Pakistan and had only one seat in NA.
No, wrong. Correct answer is that he was not told by his masters to demand the resignation at that time. Bonga Khan is a good boy. He does what he is told by his handlers.
Masters, we have seen Nawaz asking armed forces to intervene and then lying about it in NA....so please keep your bullshit with yourself. What Imran Khan has done over last 17 days it can't be done by any other leader no matter how much they use Patwaris.
One thing is clear that Nawaz told lies about BayNazir also which people never believed at that time.