Flying Into Downing Street On A Persian Carpet?

Good luck to Boris Johnson in Iran. He ought to refuse to leave without Nazanin Zaghari-Ratcliffe. But he is only doing this so that he can launch his bid for the Leadership of the Conservative Party on the tarmac upon his return. Otherwise, either he or Theresa May would have done it weeks ago. As Jeremy Corbyn ought also to have done. As someone certainly ought to have done. Had I been a Member of Parliament, then I would have done this during the recent parliamentary recess. Why did none of them do that? They cannot all have children to consider.