# 2005 Piedmontese regional election

The 2005 Piedmontese regional election took place on 3–4 April 2005. Mercedes Bresso of the Democrats of the Left defeated the incumbent Enzo Ghigo of Forza Italia.

## Electoral system

Regional elections in Piedmont were ruled by the Tatarella law, which was approved in 1995 and 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 quota among the provincial party lists; one fifth of the council seats instead was reserved for regional lists and assigned with a majoritarian representation system, in which 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 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 alliance | Political party or alliance | Constituent lists | Constituent lists | Previous result | Previous result | Candidate |
| Political party or alliance | Political party or alliance | Constituent lists | Constituent lists | Votes (%) | Seats | Candidate |
| | The Union | | Democrats of the Left | 17.7 | 9 | Mercedes Bresso |
| | The Union | | Democracy is Freedom – The Daisy | 7.9 | 3 | Mercedes Bresso |
| | The Union | | Communist Refoundation Party | 5.5 | 2 | Mercedes Bresso |
| | The Union | | Federation of the Greens | 2.1 | 1 | Mercedes Bresso |
| | The Union | | Party of Italian Communists | 2.1 | 1 | Mercedes Bresso |
| | The Union | | Italian Democratic Socialists | 1.8 | 1 | Mercedes Bresso |
| | The Union | | Union of Democrats for Europe | — | — | Mercedes Bresso |
| | The Union | | Italy of Values | — | — | Mercedes Bresso |
| | The Union | | Others | — | — | Mercedes Bresso |
| | House of Freedoms | | Forza Italia | 30.8 | 17 | Enzo Ghigo |
| | House of Freedoms | | National Alliance | 11.9 | 6 | Enzo Ghigo |
| | House of Freedoms | | Northern League Piedmont | 7.6 | 3 | Enzo Ghigo |
| | House of Freedoms | | Union of Christian and Centre Democrats | 4.5 | 2 | Enzo Ghigo |
| | House of Freedoms | | Pensioners' Party | 0.7 | – | Enzo Ghigo |
| | House of Freedoms | | Greens Greens | 0.4 | – | Enzo Ghigo |
| | House of Freedoms | | Others | — | — | Enzo Ghigo |

## Results

3–4 April 2005 Piedmontese regional election results :
| Candidates | Candidates | Votes | % | Seats | Parties | Parties | Votes | % | Seats |
| | Mercedes Bresso | 1,226,355 | 50.91 | 12 |
| | Mercedes Bresso | 1,226,355 | 50.91 | 12 | | Democrats of the Left | 411,237 | 20.10 | 11 |
| | Mercedes Bresso | 1,226,355 | 50.91 | 12 | | Democracy is Freedom – The Daisy | 211,457 | 10.34 | 6 |
| | Mercedes Bresso | 1,226,355 | 50.91 | 12 | | Communist Refoundation Party | 130,776 | 6.39 | 4 |
| | Mercedes Bresso | 1,226,355 | 50.91 | 12 | | Together for Bresso | 60,314 | 2.95 | 1 |
| | Mercedes Bresso | 1,226,355 | 50.91 | 12 | | Federation of the Greens | 57,516 | 2.81 | 1 |
| | Mercedes Bresso | 1,226,355 | 50.91 | 12 | | Party of Italian Communists | 53,359 | 2.61 | 1 |
| | Mercedes Bresso | 1,226,355 | 50.91 | 12 | | Italian Democratic Socialists | 49,821 | 2.44 | 1 |
| | Mercedes Bresso | 1,226,355 | 50.91 | 12 | | Italy of Values | 31,016 | 1.52 | 1 |
| | Mercedes Bresso | 1,226,355 | 50.91 | 12 | | Union of Democrats for Europe | 10,734 | 0.52 | – |
| | Mercedes Bresso | 1,226,355 | 50.91 | 12 | | Pensioners for Europe | 5,156 | 0.25 | – |
| | Mercedes Bresso | 1,226,355 | 50.91 | 12 | Total | Total | 1,021,386 | 49.93 | 26 |
| | Enzo Ghigo | 1,133,358 | 47.05 | 1 |
| | Enzo Ghigo | 1,133,358 | 47.05 | 1 | | Forza Italia | 457,397 | 22.36 | 11 |
| | Enzo Ghigo | 1,133,358 | 47.05 | 1 | | National Alliance | 195,318 | 9.55 | 5 |
| | Enzo Ghigo | 1,133,358 | 47.05 | 1 | | Northern League Piedmont | 173,020 | 8.46 | 4 |
| | Enzo Ghigo | 1,133,358 | 47.05 | 1 | | Union of Christian and Centre Democrats | 93,872 | 4.59 | 2 |
| | Enzo Ghigo | 1,133,358 | 47.05 | 1 | | Greens Greens | 23,761 | 1.16 | 1 |
| | Enzo Ghigo | 1,133,358 | 47.05 | 1 | | Consumers' List | 23.378 | 1.14 | 1 |
| | Enzo Ghigo | 1,133,358 | 47.05 | 1 | | Socialists and Liberals | 16.944 | 0.83 | – |
| | Enzo Ghigo | 1,133,358 | 47.05 | 1 | | Pensioners' Party | 11,883 | 0.58 | – |
| | Enzo Ghigo | 1,133,358 | 47.05 | 1 | Total | Total | 995,573 | 48.67 | 24 |
| | Gianfranco Rotondi | 24,813 | 1.03 | – | | Democratic Ecologists – Christian Democracy | 14,255 | 0.70 | – |
| | Lodovico Ellena | 24,454 | 1.02 | – | | Social Alternative | 14,515 | 0.71 | – |
| Total candidates | Total candidates | 2,408,980 | 100.00 | 13 | Total parties | Total parties | 2,045,729 | 100.00 | 50 |
| Source: Ministry of the Interior – Historical Archive of Elections ||||||||||