Legislative elections were held in Mexico on Sunday 15 August 1943.Dieter Nohlen (2005) Elections in the Americas: A data handbook, Volume I, p453 The Party of the Mexican Revolution won all 147 seats in the Chamber of Deputies.Nohlen, p468

Results The Party of the Mexican Revolution received 92% of the vote and won all of the seats against the National Action Party (PAN), which received only 5%. The remaining 3% went to unregistered candidates of the Mexican Communist Party (PCM).

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