For nearly 100 years, the government of the State of Mexico stayed in the hands of a PRI political network known as the Grupo Atlacomulco. In 1945, Governor Isidro Fabela handed the post to his nephew, Alfredo del Mazo Vélez. The nephew’s son and grandson later governed the state as well. The magazine Expansión describes the group’s “main characteristic” as “consanguinity.”
The network lost the governorship in the election of June 2023.