After 1999, Peña Nieto went from having low-level secretary positions to higher and more qualified offices. He served from 1999 to 2000 as the Sub-secretary of Government, and as financial sub-coordinator of the political campaign of Montiel Rojas. In 2001, Montiel Rojas named Peña Nieto Sub-secretary of Interior in the State of Mexico, a position that granted him the opportunity to meet and forge relationships with top PRI politicians and wealthy businessmen. After his term concluded, he served as the administrative secretary, as president of the Directive Council of Social Security, as president of the Internal Council of Health, and as vice president of the National System for Integral Family Development – all in the State of Mexico. Under the wing of Montiel Rojas, Peña Nieto formed a group known as the "Golden Boys of Atlacomulco" with other members of the PRI.