ement . ▁ ▁Alf ons ín ' s ▁support ▁was ▁strong est ▁among ▁those ▁age ▁ 4 5 ▁to ▁ 5 9 ▁( 1 4 . 6 % ), ▁and ▁weak est ▁among ▁young ▁vot ers ▁( 5 . 3 %). ▁ ▁Social ists ▁ ▁B inner ▁end ors ed ▁G EN ▁leader ▁Mar gar ita ▁St ol b izer ▁for ▁Governor ▁of ▁Buenos ▁Aires ▁following ▁his ▁break ▁with ▁Alf ons ín , ▁and ▁formally ▁announced ▁his ▁Broad ▁Progress ive ▁Front ▁candid acy ▁on ▁ 1 1 ▁June ; ▁he ▁nominated ▁C ór dob a ▁Senator ▁Norm a ▁Mor and ini ▁as ▁his ▁running ▁mate . ▁His ▁al liance ▁with ▁P ino ▁Sol anas ▁was ▁dissol ved ▁the ▁following ▁week , ▁however , ▁and ▁the ▁Pro yect o ▁Sur ▁leader ▁instead ▁joined ▁a ▁coal ition ▁of ▁minor , ▁left - wing ▁parties . ▁ ▁B inner , ▁despite ▁obtain ing ▁fourth ▁place , ▁f ared ▁better ▁than ▁expected ▁by ▁local ▁anal yst s ▁in ▁the ▁ 1 4 ▁August ▁primary , ▁and ▁became ▁the ▁runner - up ▁in ▁subsequent ▁pol ls . ▁His ▁support ▁was ▁strong est ▁among ▁the ▁middle ▁( 1 8 . 8 %) ▁and ▁upper ▁middle ▁classes ▁( 1 8 . 9 % ), ▁while ▁weak est ▁among ▁the ▁poor ▁( 6 . 5 % ); ▁among ▁the ▁broad ▁age ▁groups , ▁vot ers ▁ 3 0 ▁to ▁ 4 4 ▁were ▁the ▁most ▁support ive ▁( 1 9 . 3 %). ▁ ▁C iv ic ▁Co al ition ▁The