The K money trail was a 2013 journalistic investigation into political corruption in Argentina. It began with reports on the Periodismo para todos television program hosted by journalist Jorge Lanata. The investigation was named "the K money trail" to imply that former presidents Néstor Kirchner and Cristina Fernández de Kirchner were involved. The investigation showed embezzlement had taken place and suggested the money trail involved Néstor Kirchner, Cristina Fernández de Kirchner and an alleged partner, businessman Lázaro Báez. The journalists concluded that Báez diverted money intended for public infrastructure to tax havens. The television show led to an official investigation. In April 2016, Lázaro Baez was arrested for corruption charges and jailed in the Ezeiza Federal Prison Complex awaiting trial. In mid-2020 he was transferred to house arrest as the proceedings were put on hold due to the COVID-19 pandemic. In 2021, Báez was sentenced to 12 years in prison for money laundering. In June 2023, a separate case looking into possible wrongdoing by Cristina Kirchner was dismissed after the prosecution failed to produce evidence.

Periodismo para todos is an Argentine investigative journalism television program. It is hosted by the journalist Jorge Lanata, and airs on Sunday nights in eltrece. It was highly critical during the Cristina Fernández de Kirchner presidency. In 2013, it won several Martín Fierro Awards including best news TV program and best journalistic work for Jorge Lanata. During Fernández de Kirchner's presidency, it was censored in several provinces of Argentina with governors aligned with the president: Tucumán, Formosa Mendoza and Río Negro.