Boz has a pretty good analysis here about the victory of Mauricio Macri in the election for Buenos Aires mayor. The right-wing businessman and owner of the Boca Juniors football team. Macri's vote total was over 60% of the votes, leading me to believe that many of the votes for Macri's opponent, Daniel Filmus must have come from fans of Boca's arch rival, River Plate ;-).
In all seriousness, however, it is difficult to say what impact this will have with the upcoming presidential elections. As Boz notes, and I'm in agreement, Macri appears to have won largely on everyday issues such as traffic and political safety. I lean more heavily to the side that believes Macri will not present himself as a major political force, but will focus on Buenos Aires.
One can compare it to what happened in New York City in the 1990's. Rudolph Giuliani was twice elected mayor of New York [not by your humble writer], not on the basis of his political views, but on issues relatively similar to those addressed by Macri. Giuliani, in his presidential bid, does not poll well in New York City against democratic candidates.
Which brings to another issue Boz notes: President Nestor Kirchner will not run for reelection, but his wife, Cristina Kirchner, currently a senator, will run for president. I'm somewhat puzzled as to why Kirchner is not running for reelection. He is hugely popular in Argentina, but there are rumors of burnout and fatigue. I do not know much about Cristina, but her CV is impressive and I'm certain we'll hear much more about her in the months ahead.
Just for the record, by the way, I have generally positive feelings about Nestor Kirchner. I admire the fact that he has made efforts to rein in the military and the fact that he has made a serious effort to find justice for those killed in the Israeli Embassy and AMIA bombings.
While I disagree with him about certain issues (i.e. the Falklands/Malvinas imbroglio), he's been the best leader for Argentina for some time now in my humble opinion.