Italian general election, 1968

The Italian elections of 1968 were held on May 19. The fifth Parliament of republican Italy was selected, while voters were 35,566,681 for the Chamber of Deputies and 33,003,249 for the Italian Senate, with an increment of some 3,000,000 in both elections from 1963.

Democrazia Cristiana (DC) remained stable around 38% of the votes. They were marked by a victory of the Communist Party (PCI) passing from 25% of 1963 to c. 30% at the Senate, where it presented jointly with the new Italian Socialist Party of Proletarian Unity (PSIUP), which included members of Socialist Party (PSI) which disagreed the latter's alliance with DC. PSIUP gained c. 4.5% at the Chamber. The Socialist Party and the Democratic Socialist Party (PSDI) presented together as the Unified Socialist Party, but gained c. 15%, far less than the sum of what the two parties had obtained separatedly in 1963.

Electoral system

The pure party-list proportional representation had traditionally become the electoral system for the Chamber of Deputies. Italian provinces were united in 32 constituencies, each electing a group of candidates. At constituency level, seats were divided between open lists using the largest remainder method with Imperiali quota. Remaining votes and seats were transferred at national level, where they was divided using the Hare quota, and automatically distributed to best losers into the local lists.

For the Senate, 237 single-seat constituencies were established, even if the assembly had risen...
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