The Sovereignty Dilemma: Why Europe’s Sovereignists Struggle to Build a United Front

A fundamental tension continues to dog Europe's nationalist and right-wing political landscape across member states like Italy, Spain, and Poland: the inherent friction between defending national sovereignty and building a functional international alliance. While sovereignist parties have gained significant domestic traction, their shared objective of paring back European Union authority runs directly into a practical wall in Brussels. To exercise actual power in the EU system, political factions must form disciplined legislative groups, agree on shared manifestos, and vote as cohesive blocs. Yet a political doctrine anchored in placing pure national interest above all else makes durable cross-border compromise almost structural impossible.

For voters, legislative alliances in Brussels determine who actually shapes EU law—from border management and trade to energy policy. Voters electing sovereignist parties to reshape or curtail EU influence often expect those forces to alter policy directly. However, if national parties refuse to compromise with one another on budget contributions, foreign policy, or migration burden-sharing, their leverage in Brussels evaporates. In the EU, a scattered collection of national champions rarely outvotes a organized coalition.

Brussels operates on a system designed to reward political integration. Inside the European Parliament, official political groups receive financial resources, speaking time, committee chairmanships, and legislative rapporteurships—the vital posts responsible for drafting and steering legislation into law. To secure these prizes, parties must assemble at least 23 MEPs from a quarter of member states. Here lies the irony of sovereignist politics: to dismantle or limit European integration, national parties must use the very tools of European integration, requiring them to standardise their national self-interests into a single voting line. When national priorities inevitably conflict, ideological purity frequently triumphs over procedural power.

As political dynamics evolve in capitals from Warsaw to Rome and Madrid, sovereignist parties face a persistent strategic choice. They must either moderate their national stances to build durable voting blocs in Parliament, or preserve their strict national mandates at the expense of legislative influence. The EU machinery will continue to roll along, favouring those able to strike compromises in negotiating rooms over those whose core brand is refusing to make them.