The royalists had played their strongest card. It was the word of the city's spiritual leader, against which few dared to rise. At this critical moment of the debate, the patriotic eyes converged on the only one capable of refuting their arguments, with solvency. It was Juan José Castelli, the "Voice of the Revolution," a magnificent orator, and who, as a lawyer, had reversed processes considered "lost" in advance. Castelli accepted the challenge and argued that, with the fall of the Central Junta of Seville, the Sovereign Government of Spain had expired. The Regency Council of Cádiz lacked authority over America, as the Americans had not delegated any authority to it. Consequently, in the absence of the King, the people of Buenos Aires should reassume their full sovereignty and decide who would govern them, as was done in the Peninsula. Therefore, there was no difference between European and American Spaniards; since they had not engendered "rams" in our lands, but people equal and with the same rights as the peninsulars; in obvious response to the Bishop's thesis. In response to this, Lué managed to respond that he had not come to this assembly to debate with anyone, but simply to freely express his opinion on the matter that summoned them.
The old sailor Pascual Ruíz Huidobro, hero of the English Invasions, held the obvious argument that the Viceroy represented the King. Without a King, he had no one to represent; and consequently, he should cease in command, and the Cabildo should assume in his place.
The royalists replied through Prosecutor Manuel Villota, arguing, quite logically, that the city of Buenos Aires did not represent the entire Viceroyalty; and that it could not decide for all the provinces. Consequently, nothing could be solved without consulting them beforehand. In response to this reasonable objection, Juan José Paso argued that Buenos Aires acted, in this act, as an "older sister" watching over the other provinces, which would later be invited to join the new Junta to be appointed.
Cornelio Saavedra proposed a formula too moderate for the taste of many: to delegate the Government to the Cabildo, until it constituted a Junta, in the form it deemed convenient. Since Cisneros still had much influence over the Cabildo, this motion did not fully convince the patriotic side. Saavedra concluded that "there is no doubt that the people are the ones who confer authority or command."
Faced with the risk of losing the vote with the dispersion of votes, the patriotic side decided to support Saavedra's motion; which turned out to be the winner. Once the votes were counted, 158 were for the removal of the Viceroy, in its various forms, 67 voted for his permanence, and 26 did not vote or withdrew before the election. As a curiosity, it can be noted that almost all the priests who voted after their superior, Bishop Lué, did so in favor of Saavedra.
Having triumphed in the Saavedrist motion, the Cabildo proclaimed: "After the most thorough examination, it results that His Excellency the Viceroy must cease in command, and this falls provisionally on His Excellency. Cabildo until the erection of a Junta to be formed by the same His Excellency Cabildo, in the manner it deems convenient."
The councilors Manuel de Anchorena and José de Ocampo were in charge of notifying Don Baltasar Hidalgo de Cisneros that he had ceased to be the last Viceroy of the Río de la Plata.












