Axel Kicillof headed by Hernán Lorenzino. After that, on November 18, 2013, Kicillof officially became Minister of Economy. Kicillof was instrumental in the renationalization of YPF. President Cristina Fernández de Kirchner named Kicillof to the post of Secretary (or Deputy Minister) for Economic Policy and Development Planning in December 2011. He took academic leave to assume this post. In this position, Kicillof oversaw the controversial 2012 nationalization of YPF, the Argentine oil company then controlled by the Spanish energy firm Repsol. It was the largest expropriation in Argentina's history. He justified this action as part of a needed reversal of the Argentinian
Cristina Fernández de Kirchner for a time, and Venezuela was incorporated into the Mercosur. She maintained her support of Venezuela even during the large 2014 Venezuela protests and the imprisonment of its leader, Leopoldo López. Kirchner had a rocky relationship with the United States. Several items from a US air force plane, such as drugs and GPS devices, were seized by Argentine officials, which caused a diplomatic crisis. US State Department spokesman Philip J. Crowley said that they were standard tools used in counter-terrorism tactics which were being taught to the Argentine police during the joint operation, and asked for the return of the