How European Integration Changes National Parties: Evidence from a 15-Country Study

Abstract

This article examines the impact of European integration on the balance of power within national political parties. It does this by drawing on the results of a survey of key actors in up to 55 parties in the 15 pre-2004 enlargement member states. The analyses show that, when they are involved in EU-level decision-making, party elites are relatively powerful vis-à-vis their national parties and that in a number of instances their intra-party power has also increased over time. National parties have, to some extent, attempted to constrain their elites but appear to be fighting a losing battle. Although there are some minor differences by country and by party, the empowerment of party elites is a general phenomenon. This research provides an empirical dimension to the existing research on the Europeanisation of national political parties and presents an important substantiation of the widely discussed democratic deficit that exists within the EU system of governance.