▁He ▁had ▁been ▁re elect ed ▁to ▁Congress , ▁but ▁res igned ▁in ▁ 1 9 9 0 ▁to ▁accept ▁a ▁post ▁as ▁Amb assador ▁to ▁Brazil . ▁De ▁la ▁S ota ▁again ▁ran ▁for ▁governor ▁of ▁C ór dob a ▁in ▁ 1 9 9 1 . ▁De fe ated ▁by ▁Governor ▁Angel oz ▁by ▁over ▁ 1 5 %, ▁this ▁latter ▁set back ▁was ▁significant ▁because ▁it ▁cost ▁De ▁la ▁S ota ▁much ▁of ▁his ▁support ▁within ▁the ▁Just icial ist ▁Party ▁( which ▁was ▁flush ▁with ▁victory ▁in ▁the ▁ 1 9 9 1 ▁mid - ter ms ), ▁leading ▁to ▁President ▁Carlos ▁Men em ' s ▁end ors ement ▁of ▁a ▁separate ▁party ▁list ▁in ▁C ór dob a ▁for ▁the ▁ 1 9 9 3 ▁mid - term ▁elections , ▁and ▁to ▁De ▁la ▁S ota ' s ▁failure ▁to ▁reg ain ▁a ▁seat ▁in ▁Congress . ▁ ▁The ▁ 1 9 9 4 ▁am end ment ▁of ▁the ▁Argent ine ▁Constitution ▁raised ▁the ▁number ▁of ▁Sen ators ▁from ▁two ▁to ▁three ▁( g iving ▁the ▁largest ▁minor ity ▁party ▁in ▁each ▁province ▁the ▁third ▁seat ), ▁and ▁this ▁allowed ▁De ▁la ▁S ota ▁to ▁return ▁to ▁high - profile ▁elected ▁office ▁as ▁a ▁Senator ▁in ▁ 1 9 9 5 . ▁His ▁ten ure ▁in ▁the ▁Senate ▁was ▁highlight ed ▁by ▁a ▁largely ▁un success ful ▁effort ▁to ▁reform ▁the ▁nation ' s ▁budget ▁process , ▁propos ing ▁a ▁f isc ally ▁conserv ative ▁program ▁that ▁would