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.
Presidency of Cristina Fernández de Kirchner 2008, Fernández proposed the transfer of nearly US$30 billion in private pension holdings to the social security system, a law that was passed by Congress in late November. President Cristina Kirchner is a member of the Council of Women World Leaders, an international network of current and former women presidents and prime ministers whose mission is to mobilize the highest-level women leaders globally for collective action on issues of critical importance to women and equitable development. Fernández was invited to the prestigious Summit on Financial Markets and the World Economy in Washington, D.C., on November 15, 2008, by President George