Europeanization is seen as a two-way interaction between developments at European Union (EU) and national levels. Applied to the European People's Party (EPP), it is discussed with reference to ideological/programmatic and organizational changes. Ideologically, EPP has kept its perennial federalism, but oil the left/right axis, has shifted towards liberal economics at the expense of traditional Christian Democrat values. Organizationally, this shift has been complemented by moves to incorporate liberal-conservative parties, especially in areas where Christian democracy has been historically weak, including EU candidate states. This flexible approach has nevertheless encountered limits and also created tension between purists and realists concerned with number rather than quality. Europeanization appears as a dynamic, unruly and sometimes contradictory process.