The member-states of the European Union by the European party affiliations of their leaders, as of 1 January 2010.
This article describes the party affiliations of leaders of each member-state represented in the European Council during the year 2010. The list below gives the political party that each head of government, or head of state, belongs to at the national level, as well as the European political alliance to which that national party belongs. The states are listed from most to least populous. More populous states have greater influence in the council, in accordance with the system of Qualified Majority Voting.
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