Batzarre accepted IUN's call to form a coalition along with Socialist local figures—the Plataforma Navarra por el Cambio—disgruntled with the Socialist Party's social policies and standing support to the conservative anti-Basque Unión del Pueblo Navarro (UPN).

In the elections to the Parliament of Navarre held on 22 May 2011, the coalition won three seats and 5.70% of the valid votes.

[3] The coalition defended an approach of "inclusion and coexistence", as opposed to exclusion and confrontational attitudes.

[4] The party also advocated for an alliance of leftist forces of Navarre and an end to UPN's on-off decades long tenure in office, as well as an understanding with leftist Basque nationalist parties.

Ahead of the 2023 Navarrese regional election, IUN and Batzarre joined Contigo Navarra, a coalition with Podemos and other ecologist parties, thus effectively dissolving I–E (n).