In response to Russia’s actions in Ukraine in 2014, the EU introduced sanctions on Moscow. Despite increasing polarisation among member states after imposition, the sanctions package was consistently renewed. How can sanctions persistence be explained? While scholarly accounts highlight German leadership, commitment to norms, and policymakers’ engagement, the EU’s ability to uphold the sanctions in the face of uneven support among member states remains puzzling. With the help of a two-level game framework, according to which actors make decisions based on the interplay between the domestic and international levels, we argue that the interaction between the Council and domestic politics helped sustaining the consensus. To illustrate this dynamic, in an exploration of domestic factions in Spain and Poland, two member states displaying opposite attitudes towards Russia, we identify the presence of at least one actor whose preference deviates from the core, thereby facilitating consensus.