Baltasar Hidalgo de Cisneros
The news of the fall of the Junta of Seville reached Buenos Aires in May 1810. With both the king of Spain and the Junta removed of power, many people thought that Cisneros had no legitimacy to govern, starting the May Revolution. Cisneros tried to calm down the population, to no avail. He called the commanders of the local armies and requested their support, but they denied it. Cisneros was ultimately forced to allow an open cabildo, which would discuss what to do. Although those meetings were usually composed of the wealthiest population, the army and a group of rioters plotted to prevent the entry of many wealthy people and allow common people instead.
Historiography of the May Revolution
On the other hand, the Congress of Tucuman issued a manifest in 1817, more than a year after the declaration of independence. It detailed abuses made by the Spanish, and former chances for separatism that were not used. Of course, once the independence was declared openly, there would not have been any further need for keeping a masquerade of submission. In the specific case of the May Revolution, it says: