The internal struggles within the Peronist party have reached a climax, particularly in light of recent accusations regarding the approval of labor reform. This discord is now translating into a looming split within the Senate's interblock, where members of Convicción Federal, a faction comprising five legislators who have distanced themselves from Cristina Kirchner's leadership, will decide whether to remain allied with the block led by José Mayans. Tensions between these senators and those closer to the former president have been escalating, particularly after three of the five voted in favor of the 2026 budget, further straining relationships within the party.

The upcoming preparatory session in the Senate serves as a critical juncture, where not only the authorities of the Chamber will be ratified but also the committee formation criteria. This session is seen as a potential turning point for Convicción Federal, with indications that part of the group is ready to sever ties with the rest of the Peronist bloc. Such a move would significantly enhance the fragmentation of the main opposition force against the government, diminishing its political influence at a crucial time.

As the Peronist party faces these internal fractures, the ramifications could extend beyond the Senate. A significant rupture within the party could lead to a weakened opposition and altered dynamics in Argentine politics, especially as the country prepares for upcoming electoral contests. The current crisis within the Peronist bloc mirrors broader challenges faced by political parties grappling with internal cohesion and the pressures of a changing political landscape in Argentina.