Kingdom of Sardinia
On 17 March 1861, law no. 4671 of the Sardinian Parliament proclaimed the Kingdom of Italy, so ratifying the annexations of all other Apennine states, plus Sicily, to the Kingdom of Sardinia. The institutions and laws of the Kingdom were quickly extended to all of Italy, abolishing the administrations of the other regions. Piedmont became the most dominant and wealthiest region in Italy and the capital of Piedmont, Turin, remained the Italian capital until 1865, when the capital was moved to Florence. But many revolts exploded throughout the peninsula, especially in southern Italy, and on the island of Sicily, because of the perceived unfair treatment of the south by the Piedmontese ruling class. The House of Savoy ruled Italy until 1946 when Italy was declared a republic by referendum. In this referendum the southern regions, including Sardinia, voted overwhelmingly in favor of the House of Savoy, with the results being 63.8% in favor of maintaining the monarchy.
Sicily
Traditionally, Sicily gives centre-right results during election. From 1943 to 1951 there was also a separatist political party called Sicilian Independence Movement ("Movimento Indipendentista Siciliano", MIS). Its best electoral result was in the 1946 general election, when MIS obtained 0.7% of national votes (8.8% of votes in Sicily), and four seats. However, the movement lost all its seats following the 1948 general election and the 1951 regional election. Even though it has never been formally disbanded, today the movement is no longer part of the politics of Sicily. After World War II Sicily became a stronghold of the Christian Democracy, in opposition to the Italian Communist Party. The Communists and their successors (the Democratic Party of the Left, the Democrats of the Left and the present-day Democratic Party) had never won in the region until 2012. Sicily is now governed by a centre-right coalition. Nello Musumeci is the current President since 2017.