To take the simplest example, current ROC president Chen Shui-bian had an outstanding record as mayor of Taipei. Moreover, he wore the mantle of being a "Taiwanese native son." In any other county or city, his re-election would have been a sure thing.
以最簡單的例子來說，現任總統陳水扁在台北市長任內政績出色、又頂著正統的「台灣之子」光環，換是在任何一個縣市，都斷無連任失利的道理，但台北人硬是以七萬多票的差距，將市長寶座改送給外省囝仔馬英九！