Del Mazo's first post in the State of Mexico government was as the director general of small business programs in the Secretariat of Economic Development, from 2005 to 2006; he left that post to serve as the director general of the State of Mexico Entrepreneurship Institute, where he remained for two years before being tapped to serve as the state secretary of tourism. He also became a national political councilor and member of the PRI's Permanent Political Commission. In 2009, del Mazo successfully ran for the municipal presidency of
Huixquilucan and served a three-year term. When that term ended, newly installed President Peña Nieto placed him in the position of director of
Banobras, the National Bank of Public Works and Services. During most of this time, he also presided a committee heading outreach to Congress by the Mexican Federation of Municipalities. In 2015, voters in the
18th district of the State of Mexico, also including Huixquilucan, sent del Mazo to the
Chamber of Deputies for the
LXIII Legislature. He presided over two commissions but not at the same time, leaving the Infrastructure Commission in March 2016 to become the president of the Budget and Public Account Commission, a post he would hold until leaving the Chamber definitively on January 30, 2017, in order to pursue a candidacy for governor. He was replaced in
San Lázaro before the end of his three-year term by his alternate,
Miguel Ángel Ramírez Ponce.
2017 gubernatorial campaign Six years after initially pursuing the PRI gubernatorial nomination secured by
Eruviel Ávila in 2011, del Mazo was tapped as the PRI's gubernatorial candidate in 2017, vying for an office the party had never lost. During the campaign, del Mazo was criticized for promoting himself using images from the Japanese animated film
My Neighbor Totoro without permission. The election quickly turned into a two-horse race with del Mazo being challenged by
Morena candidate
Delfina Gómez Álvarez. On election day, the official count gave del Mazo the victory with 33.69 percent of the vote compared to 30.91 percent for Gómez Álvarez.
Accusations of electoral fraud Despite the official vote results given by the
National Electoral Institute, the election was marred by irregularities including reports of vote-buying, spending beyond legal campaign finance limits, and electoral counts that gave del Mazo extra votes that awarded the election to him. In November 2017,
Proceso magazine published an article accusing the PRI of breaking at least 16 state laws during the elections, which were denounced 619 times. They said that all of them were broken in order to favor del Mazo during the election.
Governor of the State of Mexico Alfredo del Mazo was sworn in as governor on September 15, 2017. One of his campaign promises was to decrease crime within his first 100 days as governor. However, the opposite happened instead: 28,508 violent crimes were reported within Alfredo del Mazo's first month as governor, the highest violent crime figure in the history of the State of Mexico. In September
2020, del Mazo proposed a major overhaul of the state administration, creating a Department of Women and the fusion of other departments. Just a few days earlier, a group of feminists burned the offices of the Human Rights Commission (Codhem) in
Ecatepec in protest against governmental inaction related to
femicides, child molestation, and other concerns. The
Congress of the State of Mexico approved MXN $8,637,000,000 in debt for fiscal year 2021 on January 22, 2021. The total budget is MXN $303,120,223,774 (US$15,18 billion). The debt will be destined to pay for increased expenses for health care and to reactivate the economy in light of the
COVID-19 pandemic in Mexico. MXN $4 billion is destined for health care (including building new hospitals), public transportation, water and sewage infrastructure, and electric power supply. ==Personal life==