The end of 2015 was marked by a surprising event: the end of an era in contemporary Argentina, the triumph of Cambiemos, a new political force that put an end to a quarter century of Peronist hegemony, crowned by three Kirchnerist presidencies. Hernán kept an exhaustive, detailed and reflective a historic document that is, at the same time, almost an electoral thriller. Through its pages, readers have a front row seat to a historical sea change. Iglesias recounts the intimate day-by-day of a small group of people that were able to transform Argentine politics.