The intricate electoral system of Italy, nicknamed as Mattarellum, provided a 75% of the seats on the Chamber of Deputies as elected by a plurality voting system, whereas the remaining 25% was assigned by proportional representation with a minimum threshold of 4%. If possible, the method associate on the Senate was even more complicated: 75% of seats by uninominal method, and 25% by a special proportional method that actually assigned the remaining seats to minority parties.
General election
Background
In December 1994, following the communication of a new investigation from Milan magistrates that was leaked to the press, Umberto Bossi, leader of the Northern League, left the coalition claiming that the electoral pact had not been respected, forcing Berlusconi to resign from office and shifting the majority's weight to the centre-left side. The Northern League also resented the fact that many of its MPs had switched to Forza Italia, allegedly lured by promises of more prestigious portfolios. Berlusconi remained as caretaker prime minister for a little over a month until his replacement by a technocratic government headed by Lamberto Dini. Dini had been a key minister in the Berlusconi cabinet, and Berlusconi said the only way he would support a technocratic government would be if Dini headed it. In the end, however, Dini was only supported by most opposition parties but not by Forza Italia and Northern League. In December 1995 Dini resigned as Prime Minister and the President of the Republic, Oscar Luigi Scalfaro, decided to begin consultations to form a government, supported by all the parties in the Parliament to make constitutional reforms. Favourably to this proposal sided both, in a TV debate on 19 January 1996, Silvio Berlusconi and Democratic Party of the Left leader Massimo D'Alema. Although there were many problems on this theme in both coalition: in fact Gianfranco Fini and Romano Prodi wanted a snap election, not sure that the reforms would be helpful for the country. On 16 February 1996, a snap election was called.
Campaign
On 19 February 1996, the outgoing Prime Minister Lamberto Dini announced that he would run in the election with a new party allied with The Olive Tree rather than Berlusconi's Pole of Freedoms. Shortly after Berlusconi claimed that Dini "copied our electoral programme". Another important declaration was Umberto Bossi's one: the leader of the regionalist Northern League, which was very important in 1994 to help Berlusconi winning the election, said that his party would not support Berlusconi anymore and run alone in the election. At the same time, Prodi's coalition made an important pre-electoral agreement with Communist Refoundation Party in which Fausto Bertinotti's party undertook to support Prodi's government after the election in the case of a no-majority Parliament. On 25 March 1996, Berlusconi organised a great manifestation in Milan against taxes attended by lot of Milanese artisans; on the same day, in Turin, Prodi was heavily contested during his electoral speech and accused of not wanting to lower taxes.
