ISLAMABAD: The PTI submitted a reference to the Senate chairperson on Thursday, seeking the disqualification of Senator Saifullah Abro for defecting from party line and voting in favour of the 27th Constitutional Amendment. PTI Senator Ali Zafar posted about the development on his X account, saying: “Saifullah Abro went against party line by voting in favour of the 27th Constitutional Amendment, for which a reference for his disqualification has been filed.” The reference, moved by Zafar, invoked Article 63-A of the Constitution, which deals with disqualification on grounds of defection. “The declaration is being submitted for onward reference to the chief election commissioner for laying the same before the election commission in accordance with the said Article 63-A,” the reference, dated January 1 and seen by Dawn, said. It added that a meeting of the PTI was convened before voting on the 27th Amendment, in which it was “explicitly decided and communicated to all PTI senators in writing” that they were to ...