Sergio Salomón Céspedes

On 13 December 2022, Barbosa died; Salomón Céspedes was part of his inner circle. Early on 15 December, the legislature appointed Salomón Céspedes on a 38–1 vote to serve as substitute governor until 13 December 2024; he took indefinite leave from the legislature. Salomón had previously been noted as Barbosa's gubernatorial contender in 2024 and was the first candidate to publicly declare his interest, but the appointment renders him ineligible for election. The state legislature, in which Morena holds a majority, made the appointment despite criticism from national party president Mario Martín Delgado, who issued a statement decrying the fact that proceedings to name a substitute governor were in motion before Barbosa was buried.

Prior to becoming a member of Morena, Salomón was a member of the Institutional Revolutionary Party (PRI) and Movimiento Ciudadano. He twice served as a deputy to the Congress of Puebla from districts incorporating Tepeaca, having been elected to serve from 2014 to 2018 and again in 2021; in between, he was Tepeaca's municipal president, running as the Movimiento Ciudadano candidate. In the legislature, he was the leader of the Morena majority, having switched to that party in his second legislative campaign, and presided over the Government and Political Coordination Board. He was also recognized as one of the defenders of policies proposed by governor Miguel Barbosa Huerta.

Salomón owns a restaurant business. Between 2013 and 2016, Salomón obtained a law degree from the Universidad del Valle de Puebla [es]. He has a wife and daughters.

Sergio Salomón Céspedes Peregrina (born 18 April 1969) is a Mexican politician affiliated with Morena and substitute Governor of Puebla since 15 December 2022. He was named by the Congress of Puebla to succeed the deceased Miguel Barbosa Huerta.