sentences:  In November of the same year, he was reelected as a member of the supreme council of the Democratic Party.In the Republic of Korea's vice-presidential election of March 15, 1960, Chang suffered defeat at the hands of Lee Ki-poong by such a suspiciously large margin that protesters took to the streets alleging fraud.A thousand residents gathered in front of the opposition Democratic Party building in the southern city of Masan to protest.