Mikel Legarda, a PNV deputy for Araba, questioned the Minister of Territorial Policy and Democratic Memory, Ángel Victor Torres, about the feasibility of holding a citizen consultation in Trebiñu regarding its desire to be part of the Basque Autonomous Community. The minister affirmed this possibility but stressed that "all legally required steps" must be followed.

These steps include the Provincial Council of Burgos and the Junta of Castilla y León needing to express support for the referendum. To date, both institutions have been reluctant, and a senior official from the PSOE of Castilla y León has stated they are "completely against" it. The minister reminded that for a municipality to join an Autonomous Community, it must leave another, also citing the situation's "singularity" and "historically determined reasons."

Legarda expressed reservations about Torres's response, urging for the decision to rest with the people of Trebiñu as soon as possible. The debate surrounding Trebiñu is not new; residents and political parties have made demands on various occasions, including a recent request to the Government of Castilla y León, supported by the Observatory of Linguistic Rights, to address the need for learning Basque.

Daniel de la Rosa, organization secretary for the PSOE in Castilla y León and a representative in the regional Cortes of Burgos, reiterated that "Trebiñu is Burgos and will remain so." He stated that no decision would be made to annex this territory to Araba against the criteria of Castilla y León and the province of Burgos, emphasizing that the PSOE will always guarantee provincial unity.