The integration of the Constituent Congress in 1917

This paper offers a new perspective around the perception of political legitimacy held by the representatives to one of the most emblematic assemblies in Mexico. Reviewing the credentials of the Querétaro Constituent Congress allows us to observe the first internal disputes within constitutionalism, since plenty has been said about the enactment of the Political Constitution of the Mexican United States, whereas the legislative sessions that gave rise to it are not studied enough. By presenting the chiaroscuros of the constituent parliamentary work, particularly during the first days of the electoral college, this article aims to complement the existing enormous historiographic production on this Congress