Chiang Kai-shek’s greatgrandson claims win

Chiang Kai-shek’s great-grandson declared victory in the race to be mayor of Taiwan’s capital, as the ruling party suffered a resounding defeat in island-wide local elections a little more than a year before a new president is chosen. Chiang Wan-an of the opposition Kuomintang will become, at 43 years old, the youngest ever mayor of Taipei, a position that can serve as a springboard to the presidency. ‘‘Everyone, we did it,’’ he told a crowd of several thousand people outside his campaign headquarters on Saturday night.