The 27 September 2026 PTI-led protest, referenced in reports involving Senate Opposition Leader Abbas, is primarily aimed at demanding the release of whom?

Explanation: The 27 September 2026 protest led by PTI, with support from the TTAP opposition alliance, is primarily aimed at demanding the release of PTI founder Imran Khan and at mobilising public support for what the alliance describes as the "supremacy of the Constitution." The demonstration forms part of a broader, sustained pattern of PTI-led political mobilisation throughout 2026 centred on Khan's continued detention and disputes over the legitimacy of various constitutional and judicial developments.