Radicalisation and discursive accommodation: responses to rising Euroscepticism in the European Parliament

Abstract

The rise of Euroscepticism has shifted the structure of political conflict in the European Parliament (EP) towards an increasingly dominant pro-/anti-EU divide. Focusing on the hard case of EU enlargement, this article examines changes in MEPs' discursive and voting patterns over the past two EP mandates. It combines two original datasets containing MEP statements during plenary debates and subsequent roll-call votes to examine the polarisation, cohesion, and consistency of legislative behaviour across different European Political Groups. The findings show that soft Eurosceptics drive a deepening of the pro-/anti-EU divide by radicalising in both discourse and vote to join hard Eurosceptics in their firm rejection of further enlargement. Pro-European MEPs, in contrast, show discursive accommodation of Eurosceptic concerns, with a growing inconsistency between sceptical discourse and continued vote-based support for enlargement-related initiatives. A case study of Turkey illustrates these two mechanisms. The findings shed light on the changing dynamics of political competition in the EP and the impact of rising Euroscepticism upon MEPs' legislative behaviour.