Political groups of the European Parliament
The European Parliament is unique among supranational assemblies in that its members (MEPs) organise themselves into ideological groups, rather than national cleavages. Each political group is assumed to have a set of core principles, and political groups that cannot demonstrate this may be disbanded (see below).
A political group of the EP usually constitutes the formal parliamentary representation of one or more European political parties (Europarty), national political parties and independent politicians. In contrast to European political parties, it is strictly forbidden for political groups to organise or finance the political campaign during the European elections since this is the exclusive responsibility of the parties.