• 29 August 2024: Members-elect are sworn in.
Gerardo Fernández Noroña is elected
President of the Senate and
Ifigenia Martínez y Hernández is elected
President of the Chamber of Deputies for the first year of the legislature. • 1 September 2024: Legislature convenes. • 10 September 2024: Protesters opposing the
judicial reform bill storm the
Senate building, temporarily halting the session discussing the reforms. The Senate reconvenes in its former premises and passes the bill by an 86–41 vote at around 04:00 CST the following morning. • 25 September 2024: The Senate voted 86–42 on a
constitutional amendment that transfers the control of the
National Guard to the
Secretariat of National Defense. • 1 October 2024:
Claudia Sheinbaum becomes
President of Mexico. • 5 October 2024:
President of the Chamber of Deputies Ifigenia Martínez y Hernández dies. • 8 October 2024:
Sergio Gutiérrez Luna is elected President of the Chamber of Deputies. • 9 October 2024: The Senate unanimously approves a constitutional amendment aimed at ensuring that the minimum wage increases above inflation. • 16 October 2024: The Senate unanimously approves a constitutional amendment that enables the State to reclaim the right to provide
passenger train transportation. • 16 October 2024: The Senate voted 86–39 on an energy reform bill that reestablishes the
Federal Electricity Commission (CFE) and
Pemex as public entities and mandates that the CFE retains a 54% share of electricity generation. • 30 October 2024: The Chamber of Deputies voted 343–129 on a constitutional amendment that enshrines constitutional supremacy, allowing legal challenges to constitutional amendments only on procedural grounds. • 12 November 2024: Morena and its allies secure a supermajority in the Senate with the defection of
Cynthia López Castro. • 4 March 2025: The Chamber of Deputies voted 432–28 on a bill banning immediate reelection and prohibiting family members of current officeholders from seeking the same elected position. The reform is scheduled to take effect in 2030. • 29 August 2025:
Laura Itzel Castillo is elected President of the Senate for the second year of the legislature. • 31 August 2025: The Chamber of Deputies postpones the renewal of its Board of Directors until 5 September amid Morena's rejection of PAN proposals; Sergio Gutiérrez Luna continues as President of the Chamber of Deputies. • 2 September 2025:
Kenia López Rabadán is elected President of the Chamber of Deputies for the second year of the legislature. • 27 November 2025: The Senate approves the resignation of Attorney General
Alejandro Gertz Manero in a 74–22 vote. • 3 December 2025: The Senate compiled a list of ten finalists for the position of Attorney General, which the President narrowed to a shortlist of three. After the three finalists testified before the chamber, the Senate appointed
Ernestina Godoy Ramos as Attorney General in a 97–19 vote. == Major legislation ==