Pakistani cricketer-turned-opposition leader and head of Pakistan Tehreek-i-Insaf (PTI), Imran Khan arrives at the Supreme Court in Islamabad on November 17, 2016. AFP
Pakistani cricketer-turned-opposition leader and head of Pakistan Tehreek-i-Insaf (PTI), Imran Khan arrives at the Supreme Court in Islamabad on November 17, 2016. AFP

Imran Khan heads to Washington as US bids for Afghan peace breakthrough