In a movement that revives the historic opposition alliance, the PRO and a sector of the UCR have formed a mini-interblock in the Chamber of Deputies of the Nation, adding a total of 22 legislators. This group, which also includes deputies from other related spaces, seeks to position itself as the third force in the chamber, competing directly with the United Provinces interblock for key commissions such as Budget and Constitutional Affairs. The training took place in the context of the swearing-in of the new deputies on December 3, 2025, where a tie was recorded in the definition of the third vice presidency, which postponed the resolution.
The interbloc, promoted by Mauricio Macri and with negotiations led by Cristian Ritondo (PRO), incorporates ex-libertarians, a deputy from Santa Cruz who separated from the United Provinces and other monoblocs. This assembly reflects internal tensions in the ruling party and the opposition, with Macri reviving the Together for Change coalition to counteract the loss of allies towards La Libertad Avanza and other blocs.
The 6 radicals of the UCR
The Radical Civic Union (UCR) block in this interblock has 6 deputies, chaired by Pamela Verasay (Mendoza). The members are:
- Pamela Fernanda Verasay (Mendoza, term 2025-2029)
- Guillermo César Agüero (Chaco, 2025-2029)
- Gerardo Cipolini (Chaco, 2023-2027)
- Diógenes Ignacio González (Corrientes, 2025-2029)
- Lisandro Nieri (Mendoza, 2023-2027)
- Darío Schneider (Entre Ríos, 2025-2029)
This group represents a sector of radicalism aligned with governors such as Alfredo Cornejo (Mendoza), Leandro Zdero (Chaco) and Gustavo Valdés (Corrientes), although Karina Banfi (Buenos Aires) separated to form her own monobloc, “Adelante Buenos Aires”, but joined the interbloc.
The 12 of the PRO aligned with Macri
The PRO bloc, with 12 deputies and chaired by Cristian Ritondo (Buenos Aires), forms the core of the interbloc. The members are:
- Cristian A. Ritondo (Buenos Aires, 2023-2027)
- Martín Ardohain (La Pampa, 2023-2027)
- Emmanuel Bianchetti (Missions, 2023-2027)
- Fernando De Andreis (City of Buenos Aires, 2025-2029)
- María Florencia De Sensi (Buenos Aires, 2025-2029)
- Daiana Fernández Molero (City of Buenos Aires, 2023-2027)
- Alejandro Finocchiaro (Buenos Aires, 2025-2029)
- Alicia Fregonese (Entre Ríos, 2025-2029)
- Antonela Giampieri (City of Buenos Aires, 2025-2029)
- Álvaro González (City of Buenos Aires, 2023-2027)
- Javier Sánchez Wrba (Buenos Aires, 2025-2029)
- Martín Yeza (Buenos Aires, 2023-2027)
This sector of the PRO distances itself from figures like Patricia Bullrich, who has attracted deputies to other spaces, and seeks to strengthen the opposition not aligned with the ruling party.
Allies that complete the interblock
To reach 22 seats, add:
- MID (Integration and Development Movement): 2 deputies, Oscar Zago (City of Buenos Aires, 2023-2027) and Eduardo Falcone (Buenos Aires, 2023-2027). Ex-libertarians who abandoned La Libertad Avanza.
- Forward Buenos Aires: 1 deputy, Karina Banfi (Buenos Aires, 2023-2027), who broke with the main UCR.
- By Santa Cruz: 1 deputy, José Luis Garrido (Santa Cruz, 2023-2027), who separated from the United Provinces.
This assembly positions the mini-interbloc as a key arbiter in a fragmented Congress, where La Libertad Avanza is the first minority with 95 seats, followed by Unión por la Patria with 99.
The recreation of Together for Change in this mini format represents an attempt by the traditional opposition to reorganize itself in the face of the libertarian advance, although internal divisions persist in both parties.
