The European Parliament, a transmission belt for opponents to the European Commission.

In 2009 and 2010, the European and French parliaments opposed the European Commission’s reform of the European wine policy. Their opposition gained force through a coalition of professional and political agents who took the battle from Brussels to Paris. This article takes an institutional and parliamentary perspective, integrating a public policy angle, in order to understand how political and professional agents act in different institutional spaces. It prepares the ground for understanding the relations between Parliaments and public policies, a subject upon which the current literature still remains limited.