Néstor Kirchner fanned by the political weight of Buenos Aires province (the most populous in Argentina, with almost 40 percent of the national vote), and continued through the 2005 midterm elections. Without consensus in the PJ for a candidate for senator in the Buenos Aires province, both leaders had their wives run for office: Hilda González de Duhalde for the PJ and Cristina Fernández de Kirchner for the Front for Victory, which contested the election as a different party. Cristina Kirchner won the election. As in 2003, the elections were defined by Peronist factions; the opposition parties could not put up a
Cristina Fernández de Kirchner singing the Argentine national anthem. The city police estimated that the demonstration was attended by 400,000 people. Several scandals took place during the Kirchner administration. The first involved the detention of Venezuelan-American businessman Antonini Wilson in an airport after being found with a suitcase filled with $800,000. This money was illegally provided by Petróleos de Venezuela, the state oil company, to be used for Kirchner's 2007 general election campaign. Details of the case were explained by businessman Carlos Kauffmann and lawyer Moisés Maiónica, who pleaded guilty. The FPV financing of the 2007 elections caused another scandal years later. Three pharmaceutical