On the occasion of the 40th anniversary of the Spanish Constitution, Udalbiltza presented an exhibition in which he denounced the "lies" contained in the constitutional text and their influence on stateless nations.

Ahotsa.info Intxauspe and Perales have argued that “there is nothing to celebrate” and that peoples like Euskal Herria, Catalonia or similar need a “proper” constitution.

The mayor of Pamplona, Joseba Asiron, has underlined the importance of presenting the exhibition in the town, as it is a place where there has been a “harsher” territorial conflict since the sixteenth century. Furthermore, it regretted that the Spanish Constitution "does not recognise" the rights of peoples and "there are more and more attacks" against the autonomous communities. He has also published an exhibition and a video about its meaning Ahotsak.info.