The support of most of the Buenos Aires Cabinet for Fernán Quirós heightened the tension. The former president's cousin will try to capitalize on one aspect of the concurrent election.

"I am convinced that I will be head of government. Because I am the best candidate and I trust a lot in the porteños, who know how to choose," said Jorge Macri at the Amcham meeting on Tuesday, and then implicitly pointed to the resentment generated by the closeness of Rodríguez Larreta.