ABSTRACT
This chapter presents the relationship of the multilevel model originally presented by Gary Marks and interest groups. The system of interest intermediation is a multilevel one, even if it is still incomplete. In this sense, an adequate study of interest intermediation in the European Union needs to take into account these different levels of interest intermediation. A growing together of the different levels of interest intermediation is probably the likely outcome. This means that transnational linkages will bring together all these different levels. The European civil society will probably require a growing emergence of a supranational culture. Interest groups, in particular trade unions, will have the role of bringing all these different levels together and to reconstruct a more connected system of interest intermediation. Trade unionism has found a new role as counterbalance to the merely economic Single European Market. Indeed, transnationally oriented trade unionism hopes to change the categories of the political system.
