This article demonstrates the potential for phonological variables to be a resource for the expression of ideology and identity in historical circumstances such as those experienced recently in the Catalonian procés. Based on a corpus consisting of communicative events from sixteen leading Catalan politicians, four Spanish linguistic variants are analyzed. Apart from a handful of structural predictors, the mixed-effects logistic regression analysis shows the robustness of (only) two extralinguistic factor groups: the social origin and the identification of the politicians as Catalan nationalist (mainly pro-independence) or not nationalist. As regards the latter, the most significant of all predictors, the analysis shows how nationalist politicians always favor the sounds mainly associated with vernacular pronunciation in eastern Catalan speech communities ([-ɫ] and [-t]), but at the same time also favor other sounds associated with more canonical and pan-Hispanic prestige variants ([-ð] and [-ð-]). These apparently contradictory results can be explained if the social meaning of all variants is considered around the same indexical field, that of authenticity. In this sense, nationalists seem to ‘appropriate’ the Spanish language by tingeing its expressive habits with uses closer to their language. (Phonological variation, nationalism, ideology, languages in contact, Spanish, Catalan)*