In the province of Buenos Aires, the libertarian ruling party rehearses its most demanding test. It is not enough with the presidential epic nor with the discursive power of Javier Milei. There, where the governability of any national project is defined, the key is different: structure, territoriality and leadership. And on that level, who emerges as a decisive figure is Karina Milei.
With an effectiveness that is beginning to be recognized even by her adversaries, the President’s sister established herself as the political architect of La Libertad Avanza. Their task is no small one: to translate a disruptive electoral phenomenon into a machinery capable of contesting power in the most complex district in the country. And the Suipacha event last weekend, with more than 1,500 leaders from the 135 Buenos Aires municipalities, was an eloquent postcard of that process. But above all, it was a sign of order. Karina already has a Buenos Aires plan. And in that scheme two names appear that condense the central tension of the libertarian weapon: Diego Santilli and Sebastián Pareja.
Santilli is today the best positioned in electoral terms after the victory achieved in the October legislative elections. His high level of knowledge, his executive experience and his ability to attract voters outside the libertarian hard core make him a valuable piece in any competitive strategy. It represents, at some point, the guarantee of electoral viability. But he also embodies a dilemma: his origin in the PRO places him as an ally, not as his own.
Pareja, on the other hand, does not have the visibility of Santilli or his media installation, but it concentrates something that in politics usually weighs more than surveys: trust and control. He built his career in the province, based on the Seventh electoral section, and was one of the first to articulate the territorial landing of mileism. He is not an improviser or a newcomer: he is, in fact, the political head of La Libertad Avanza in Buenos Aires.
His centrality is not explained only by his closeness to Karina Milei, although that link is decisive. It is also explained by his role as organizer of a structure that is beginning to show its own density. The creation of a self-proclaimed “Council of Notables” marks a qualitative leap in the ambition of the libertarian project.
That advice is not decorative. It is, strictly speaking, a programmatic power plant that works on measures of high institutional impact with an eventual constitutional reform. Initiatives that aim to redefine the Buenos Aires State are discussed there: the merger of municipalities to reduce administrative costs, the elimination of the provincial Senate in favor of a unicameral system, the pruning of ministries, secretariats and decentralized organizationsand even the review of sensitive policies such as special education and the health system. It is not just about adjustment: it is a reengineering of the state apparatus in an ideological key.
“The council of notables is a team to think about the constitutional reform that the province needs, and which includes, among other things, unicamerality and administrative reorganization. These will be some of the axes of the campaign for Governor for 2027, whoever carries it forward,” they tell NEWS about Pareja, who seeks to show “a leap in quality” while the celestials continue to question him for having brought “Nene” Vera closer as the visible face of a team. Pareja seeks to make an upgrade with a project that will catapult him to Dardo Rocha’s chair.
The internal texts of the space—and the leaks that begin to circulate—reveal a logic consistent with the national discourse: shrink, eliminate, concentrate. “State, a bad word,” summarizes one of the documents. But what is relevant is not the slogan, but the systematicity with which it is applied. tries to translate into concrete policies. Buenos Aires mileism is no longer limited to denouncing the status quo: it is testing a model.
In this framework, internal tensions also appear: the versus with the celestials who respond to Santiago Caputo. However, far from weakening Pareja, these episodes seem to reinforce his centrality as a guarantor of internal order. In a space that is still being institutionalized, political control is a scarce asset.
Now, the big unknown remains the candidacy for governor. And there appears a piece of information that orders the board: those around Pareja assure that he has no intention of competing for the governorship. Your profile, more comfortable in political engineering than in public exposurewould better place him in a role as lieutenant governor or as political leader of the armed forces without the need to lead the ticket.
This definition opens the door to a synthesis formula: Santilli as a candidate for governor, Pareja as vice or political guarantor of the space. A combination that combines electoral competitiveness with internal control. A balance between what it measures and what it orders.
And, again, it is Karina Milei who appears as the key piece to articulate that scheme. Their logic seems clear: to prevent the Buenos Aires armed forces from being left in the hands of “borrowed” leaders, without giving up electoral volume. In other words, build your own power without losing the election. It is not a simple task. Recent history is full of political experiences that managed to break out at the national level but failed when trying to consolidate themselves in Buenos Aires.
Mileism seems determined not to repeat that mistake. That is why it invests in training cadres, in territorial deployment and in the construction of a narrative that begins to incorporate concrete management proposals. The Training School (EFDAP), the Council of Notables and the coordination with local leaders are part of the same strategy: providing political muscle to a project that, until recently, was pure disruptive power.
In this process, the figure of Sebastián Pareja acquires a dimension that exceeds his low profile. He is the territorial translator of mileism. The man who turns slogans into structure. The one who assembles, selects and projects. Diego Santilli, on the other hand, represents the possibility of winning.
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