1 8 ▁March ▁ 2 0 0 0 , ▁S iew ▁joined ▁the ▁ 2 0 0 0 ▁president ial ▁election ▁as ▁a ▁candidate ▁for ▁vice ▁president ▁with ▁his ▁running ▁mate ▁L ien ▁Chan . ▁However , ▁S iew ▁and ▁L ien ▁lost ▁the ▁election ▁to ▁Chen ▁Sh ui - bian ▁and ▁An net te ▁Lu ▁of ▁the ▁Democratic ▁Progress ive ▁Party . ▁ ▁RO C ▁Vice ▁Pres iden cy ▁▁ 2 0 0 8 ▁RO C ▁vice ▁president ial ▁election ▁ ▁In ▁May ▁ 2 0 0 7 , ▁S iew ▁was ▁mentioned ▁as ▁a ▁possible ▁running ▁mate ▁for ▁K MT ▁president ial ▁nom ine e ▁Ma ▁Y ing - Je ou . ▁ ▁This ▁spec ulation ▁came ▁to ▁f ru ition ▁after ▁Legisl ative ▁Y uan ▁Spe aker ▁Wang ▁Jin - py ng ▁decl ined ▁Ma ' s ▁offer ▁to ▁be ▁his ▁running ▁mate . ▁On ▁ 2 3 ▁June ▁ 2 0 0 7 , ▁ending ▁weeks ▁of ▁spec ulation , ▁Ma ▁formally ▁introduced ▁S iew ▁to ▁be ▁his ▁vice - pres ident ial ▁running ▁mate . ▁ ▁The ▁ 2 0 0 8 ▁run ▁is ▁S iew ' s ▁second ▁ticket , ▁having ▁been ▁selected ▁also ▁as ▁the ▁vice - pres ident ial ▁candidate ▁of ▁L ien ▁Chan ' s ▁K MT ▁ticket ▁in ▁ 2 0 0 0 . ▁ ▁On ▁March ▁ 2 2 , ▁Ma ▁and ▁S iew ▁won ▁the ▁ 2 0 0 8 ▁President ial ▁E lections . ▁He ▁and ▁Ma ▁won ▁with ▁