Peña Nieto formally started his political career under the mentorship of Montiel Rojas, becoming the Secretary of the Citizen Movement of Zone I of the State Directive Committee of the National Confederation of Popular Organizations (CNOP), one of the three sectors of the PRI. For three consecutive years, Peña Nieto participated as a delegate to the Organization and Citizen Front in different municipalities of the State of Mexico. Then, between 1993 and 1998, during Emilio Chuayfett's term as governor, Peña Nieto was chief of staff and personal secretary to Montiel Rojas, the Secretary of Economic Development of the State of Mexico.