Several political parties operate in Sardinia. No party has ever had the chance of gaining power alone and thus parties must work with each other to form coalition governments. The political parties are currently organized mainly in two political coalitions at the regional level: once centred on the Sardinian Action Party and Lega Sardegna, the other around Democratic Party. Because of their ideological and political factionalism, the Sardinian nationalist parties have played a marginal role in the electoral scene.