The gulf between Rodrigo Duterte’s putative power and what he has done with it is a central feature of Mr Duterte’s six-year rule, which comes to an end after elections in May (the constitution mandates a single presidential term). Yet the president’s Teflon approval rating presents a conundrum: though it has lately dipped a bit, it remains impressive at 72%, according to Pulse Asia Research, a pollster. Most other democratically elected presidents in the Philippines started off popular, too, but then quickly crashed. What do you think Duterte has done to be remembered for ?