tessio was chosen to be a candidate as part of an agreement between the main members of his party front, the socialists and the radicals. although a faction of the radical civic union initially fought to select a party affiliate, governor candidate hermes binner insisted, first, that his running mate should be a woman, if possible from the provincial capital, and then named her directly. tessio also fulfilled the condition of being from the north of the province, to balance given binner's perceived link to the interests of the wealthier, more populated south (as binner had been twice the mayor of rosario).