The rise of populist radical right parties (PRRPs) in a growing number of European Union (EU) member states and inside the European Parliament (EP) has triggered concern over their ability to drive further contestation of European integration. Using EU enlargement as a test case, we analyse an original dataset of over 2′700 hand-coded statements from the last three EP mandates (2004–19) to trace the emergence of an increasingly coherent, oppositional discourse by PRRPs towards a further widening of the EU. We show that PRRPs contribute to a generalized hardening of opposition towards enlargement, but fail to impose their identity-focused framing upon other parliamentary actors. Instead, we suggest that mainstream party groups accommodate PRRPs' essentialist discourse by shifting from technical, conditionality-based reasoning towards more political arguments articulated around human rights and democracy. Our findings feed into debates about the transnational cooperation of PRRPs and the political impact of Euroscepticism.

中文翻译：

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从凝聚力到传染？欧盟扩大民粹主义激进右翼之争

在越来越多的欧盟 (EU) 成员国和欧洲议会 (EP) 内部，民粹主义激进右翼政党 (PRRP) 的崛起引发了人们对其推动欧洲一体化进一步争论的能力的担忧。使用欧盟扩大作为测试案例，我们分析了来自最近三个 EP 授权（2004-19 年）的 2'700 多个手工编码语句的原始数据集，以追踪 PRRP 越来越连贯的、反对性话语的出现，以进一步扩大欧盟的。我们表明，PRRP 有助于普遍强化反对扩大的反对立场，但未能将其以身份为中心的框架强加给其他议会参与者。相反，我们建议主流政党团体通过从技术转变为适应 PRRP 的本质主义话语，围绕人权和民主的更多政治论点的基于条件的推理。我们的研究结果为有关 PRRP 的跨国合作和欧洲怀疑主义的政治影响的辩论提供了依据。