Legislative branch:
bicameral Parliament or Parlamento consists of the Senate or Senato della Repubblica (315 seats; members elected by proportional vote with the winning coalition in each region receiving 55% of seats from that region; to serve five-year terms) and the Chamber of Deputies or Camera dei Deputati (630 seats; members elected by popular vote with the winning national coalition receiving 54% of chamber seats; to serve five-year terms)
elections: Senate - last held 13-14 April 2008 (next to be held April 2013); Chamber of Deputies - last held 13-14 April 2008 (next to be held April 2013)
election results: Senate - percent of vote by party - NA; seats by party - S. BERLUSCONI coalition 174 (PdL 147, LN 25, MpA 2), W. VELTRONI coalition 132 (PD 118, IdV 3), UdC 3, other 6; Chamber of Deputies - percent of vote by party - NA; seats by party - S. BERLUSCONI coalition 344 (PdL 276, LN 60, MpA 8), W. VELTRONI coalition 246 (PD 217, IdV 29), UdC 36, other 4
Judicial branch:
Constitutional Court or Corte Costituzionale (composed of 15 judges: one-third appointed by the president, one-third elected by parliament, one-third elected by the ordinary and administrative Supreme Courts)
Political parties and leaders:
Silvio BERLUSCONI coalition: People of Freedom or PdL [Silvio BERLUSCONI]; Lega Nord or LN [Umberto BOSSI]; Movement for Autonomy or MpA [Raffaele LOMBARDO]
Walter VELTRONI coalition: Democratic Party or PD [Walter VELTRONI];
Italy of Values or IdV [Antonio DI PIETRO]
other non-allied parties: Union of the Center or UdC [Savino PEZZOTTA]