Andrade was appointed in February 2015 to lead the government investigation known as “Casa Blanca”. He announced his resignation on Monday, hours before Mexico’s President Enrique Pena Nieto signed new graft-fighting legislation. Virgilio Andrade said in a televised statement, “I decided to present today to the president of Mexico my resignation as secretary of the public functions secretariat, so that the federal executive can fully comply with the constitutional mandate to count on, within the National Anti-corruption System, a secretary of the public function secretariat appointed and ratified by the senate."

Virgilio was asked to lead the investigation of the president, first lady Angelica Rivera and Finance Minster Luis Videgaray, because investigative journalists revealed that they had purchased, from government contractors, multi-million dollar homes in Mexico City.

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According to the reform, oversight of public officials will be stepped up, an anti-graft prosecutor will be created and the head of the public functions secretariat will have to be appointed by Mexico’s president and later ratified by the country’s senate.