Cristina Fernández de Kirchner of the Buenos Aires province, both leaders had their respective wives run for the office: Hilda González de Duhalde for the PJ, and Cristina Kirchner for the Front for Victory. Cristina Kirchner won the election. The presidential election was held on 28 October 2007. With Kirchner leading all the pre-election polls by a wide margin, her challengers focused on forcing her into a ballotage. To win in a single round, a presidential candidate in Argentina needs either more than 45% of the vote, or 40% of the vote and a lead of more than 10 percentage points over the runner-up.
Cristina Fernández de Kirchner opposed to the Kirchners. The Kirchners lost the majority of Congress as a result of the election. The Front for Victory recovered the majority in both chambers of the Congress during the 2011 presidential elections, when Cristina Kirchner was re-elected for a second term. The party had projects to amend the constitution and allow indefinite reelections, but lacked the supermajority required for it. A victory at the 2013 midterm elections would have given such majority, but the party was defeated in most provinces. Sergio Massa, a former cabinet minister of the Kirchners, won in the Buenos Aires Province by nearly