On December 24, 2018, just ten days into her term as Governor of Puebla, Martha Erika Alonso Hidalgo and her husband, Senator Rafael Moreno Valle Rosas, died in a helicopter crash while en route from Puebla to Mexico City. The death of the Governor required the calling of a special gubernatorial election for 2 June 2019. This election was made simultaneous with special elections from five municipalities in the state whose initial 2018 elections had been nullified.