The Emilia-Romagna regional election of 2005 took place on 3–4 April 2005.

The incumbent President Vasco Errani, a member of the social democratic Democrats of the Left, was re-elected defeating by a landslide Carlo Monaco, the candidate of the centre-right coalition led by Forza Italia.

Electoral system Regional elections in Emilia-Romagna were ruled by the "Tatarella law" (approved in 1995), which provided for a mixed electoral system: four fifths of the regional councilors were elected in provincial constituencies by proportional representation, using the largest remainder method with a droop quota and open lists, while the residual votes and the unassigned seats were grouped into a "single regional constituency", where the whole ratios and the highest remainders were divided with the Hare method among the provincial party lists; one fifth of the council seats instead was reserved for regional lists and assigned with a majoritarian system: the leader of the regional list that scored the highest number of votes was elected to the presidency of the Region while the other candidates were elected regional councilors.

A threshold of 3% had been established for the provincial lists, which, however, could still have entered the regional council if the regional list to which they were connected had scored at least 5% of valid votes.

The panachage was also allowed: the voter can indicate a candidate for the presidency but prefer a provincial list connected to another candidate.

Parties and candidates Political party or allianceConstituent listsPrevious resultCandidateVotes (%)Seats The Union The Olive Tree 44.5 19 Vasco Errani Communist Refoundation Party 5.7 2 Federation of the Greens 2.7 1 Party of Italian Communists 2.1 1 Union of Democrats for Europe 0.1 – Italy of Values House of Freedoms Forza Italia 21.1 10 Monaco Carlo National Alliance 11.4 4 Union of Christian and Centre Democrats 3.7 1 Northern League Emilia-Romagna (LNE+LNR) 3.3 1 New Italian Socialist Party 0.4 –

Results + Candidates Votes % Seats Parties Votes % Seats Vasco Errani1,579,98962.735 The Olive Tree1,095,56648.0322 Communist Refoundation Party130,6095.732 Party of Italian Communists79,4063.481 Federation of the Greens69,4753.051 Italy of Values31,9291.401 Union of Democrats for Europe7,7320.34–Total1,414,71762.0227 Monaco Carlo886,77535.211 Forza Italia415,40618.219 National Alliance201,9638.854 Northern League Emilia-Romagna 109,0924.783 Union of Christian and Centre Democrats89,7873.941 New Italian Socialist Party19,3720.85–Total835,62036.6317 Bruno Barbieri26,7121.06– Consumers' List15,5200.68– Gianni Correggiari25,0520.99– Social Alternative15,1930.67– Total candidates2,518,528100.006 Total parties2,281,050100.0044Source: Ministry of the Interior – Historical Archive of Elections

References