 However, the term of the current president, Andrés Manuel López Obrador, will be only 5 years, 10 months (December 1, 2018 — September 30, 2024) due to a Constitutional change.Legislative elections are scheduled every six years for the Senate, to be fully renewed in elections held concurrently with the presidential elections; and every three years for the Chamber of Deputies.Elections have traditionally been held on the first Sunday of July, but the new law means they will be held on the first Sunday in June instead.