ISLAMABAD: Pakistan Tehreek-e-Insaf (PTI) lawyer Hamid Khan has announced that the party will challenge the 26th Constitutional Amendment in court, alleging that PTI members were ‘threatened and that horse-trading’ occurred to ensure the amendments’ passage. Speaking alongside former Supreme Court Bar President Abid Zuberi outside the Supreme Court, Hamid condemned the events as a ‘dark chapter in Pakistan’s history.’ He …