In the Spanish region of Galicia, immediately north of Portugal, the Bloque Nacionalista Galego (BNG) has achieved unprecedented electoral success, emerging as a prominent nationalist force within the Spanish political landscape. This study analyzes the discursive and performative repertoires employed by Galician nationalism and explores how the prevalent dual national identity in the region shapes these strategies. Reversing Brubaker’s theoretical framework and using framing and visual analysis, we compare the BNG’s strategies during two different institutional settings: its time in government (2005–2009) and its role leading the opposition (2020–2023). The findings reveal the failure of Galician nationalism to nationalize identity when in power, as policies aimed at promoting Galician identity generated a backlash and, ultimately, produced frame dealignment between the nationalists and the Galician people. The new BNG presents a social project based on the defense of Galician interests and the moderation of the nationalist discourse. It successfully accomplishes frame alignment by adapting to the non-conflictive, dual national identity shared by most Galicians while proposing an inclusive political style.