This comes at a time when keeping up his attack on the opposition ahead of Sunday s vote of confidence in the National Assembly, Pakistan Prime Minister Imran Khan said that if Leader of Opposition and PML-N leader Shahbaz Sharif (Brother of Nawaz Sharif) takes over, "they will do slavery of America". Nawaz Sharif Attacked in London by PTI Activist as Brother Shahbaz Sharif Receives Opposition Support for PM Seat.