ISLAMABAD: PPP Chairperson Bilawal Bhutto-Zardari said on Monday that a PML-N delegation led by Prime Minister Shehbaz Sharif had visited him and President Asif Ali Zardari, seeking their support for the approval of a 27th Constitutional Amendment. Separately, the PPP also issued a similar statement that quoted Bilawal as saying that the proposal included setting up constitutional courts, restoring executive …