Lombardy renewed its delegation to the Italian Senate on April 13, 2008. This election was a part of national Italian general election of 2008 even if, according to the Italian Constitution, every senatorial challenge in each Region is a single and independent race.
The election was won by the centre-right coalition between The People of Freedom and Lega Nord, as it happened at the national level. The People of Freedom was the largest party in the election with 34%, ahead of the Democratic Party (28%) and Lega Nord (21%). All provinces gave a majority or a plurality to the new Prime Minister of Italy.
The new electoral law for the Senate was established in 2005 by the Calderoli Law, and it is a form of semi-proportional representation. A party presents its own closed list and it can join other parties in alliances. The coalition which receives a plurality automatically wins at least 26 seats. Respecting this condition, seats are divided between coalitions, and subsequently to party lists, using the largest remainder method with a Hare quota. To receive seats, a party must overcome the barrage of 8% of the vote if it contests a single race, or of 3% of the vote if it runs in alliance.
|- |- style="background-color:#E9E9E9" ! rowspan="1" style="text-align:left;vertical-align:top;" |Coalition leader ! rowspan="1" style="text-align:center;vertical-align:top;" |votes ! rowspan="1" style="text-align:center;vertical-align:top;" |votes (%) ! rowspan="1" style="text-align:center;vertical-align:top;" |seats ! rowspan="1" style="text-align:left;vertical-align:top;" |Party ! rowspan="1" style="text-align:center;vertical-align:top;" |votes ! rowspan="1" style="text-align:center;vertical-align:top;" |votes (%) ! rowspan="1" style="text-align:center;vertical-align:top;" |swing ! rowspan="1" style="text-align:center;vertical-align:top;" |seats ! rowspan="1" style="text-align:center;vertical-align:top;" |change |- ! rowspan="2" style="text-align:left;vertical-align:top;" |Silvio Berlusconi | rowspan="2" style="vertical-align:top;" |3,139,694 | rowspan="2" style="vertical-align:top;" |55.1 | rowspan="2" style="vertical-align:top;" |30
| style="text-align:left;" |The People of Freedom | style="vertical-align:top;" |1,959,681 | style="vertical-align:top;" |34.4 | style="vertical-align:top;" |-3.6 | style="vertical-align:top;" |19 | style="vertical-align:top;" |0 |- | style="text-align:left;" |Lega Nord | style="vertical-align:top;" |1,180,013 | style="vertical-align:top;" |20.7 | style="vertical-align:top;" |+9.6 | style="vertical-align:top;" |11 | style="vertical-align:top;" |+6
|- ! rowspan="2" style="text-align:left;vertical-align:top;" |Walter Veltroni | rowspan="2" style="vertical-align:top;" |1,823,835 | rowspan="2" style="vertical-align:top;" |32.0 | rowspan="2" style="vertical-align:top;" |17
| style="text-align:left;" |Democratic Party | style="vertical-align:top;" |1,607,928 | style="vertical-align:top;" |28.2 | style="vertical-align:top;" |+5.8 | style="vertical-align:top;" |15 | style="vertical-align:top;" |+2 |- | style="text-align:left;" |Italy of Values | style="vertical-align:top;" |215,907 | style="vertical-align:top;" |3.8 | style="vertical-align:top;" |+1.2 | style="vertical-align:top;" |2 | style="vertical-align:top;" |+2
|- ! rowspan="1" style="text-align:left;vertical-align:top;" |Pier Ferdinando Casini | rowspan="1" style="vertical-align:top;" |240,481 | rowspan="1" style="vertical-align:top;" |4.2 | rowspan="1" style="vertical-align:top;" |-
| style="text-align:left;" |Union of the Centre | style="vertical-align:top;" |240,481 | style="vertical-align:top;" |4.2 | style="vertical-align:top;" |-1.7 | style="vertical-align:top;" |- | style="vertical-align:top;" |-3
|- ! rowspan="1" style="text-align:left;vertical-align:top;" |Fausto Bertinotti | rowspan="1" style="vertical-align:top;" |183,061 | rowspan="1" style="vertical-align:top;" |3.2 | rowspan="1" style="vertical-align:top;" |-
| style="text-align:left;" |The Left â The Rainbow | style="vertical-align:top;" |183,061 | style="vertical-align:top;" |3.2 | style="vertical-align:top;" |-8.6 | style="vertical-align:top;" |- | style="vertical-align:top;" |-7
|- ! rowspan="1" style="text-align:left;vertical-align:top;" |Daniela Santanchè | rowspan="1" style="vertical-align:top;" |93,077 | rowspan="1" style="vertical-align:top;" |1.6 | rowspan="1" style="vertical-align:top;" |-
| style="text-align:left;" |The Right â Tricolour Flame | style="vertical-align:top;" |93,077 | style="vertical-align:top;" |1.6 | style="vertical-align:top;" |+0.5 | style="vertical-align:top;" |- | style="vertical-align:top;" |-
|- ! rowspan="1" style="text-align:left;vertical-align:top;" |Eva Rossi | rowspan="1" style="vertical-align:top;" |45,622 | rowspan="1" style="vertical-align:top;" |0.8 | rowspan="1" style="vertical-align:top;" |-
| style="text-align:left;" |Lega per l'Autonomia â Alleanza Lombarda | style="vertical-align:top;" |45,622 | style="vertical-align:top;" |0.8 | style="vertical-align:top;" |-0.8 | style="vertical-align:top;" |- | style="vertical-align:top;" |-
|- ! rowspan="1" style="text-align:left;vertical-align:top;" |Enrico Boselli | rowspan="1" style="vertical-align:top;" |30,745 | rowspan="1" style="vertical-align:top;" |0.5 | rowspan="1" style="vertical-align:top;" |-
| style="text-align:left;" |Socialist Party | style="vertical-align:top;" |30,745 | style="vertical-align:top;" |0.5 | style="vertical-align:top;" |-1.7 | style="vertical-align:top;" |- | style="vertical-align:top;" |-
|- ! rowspan="1" style="text-align:left;vertical-align:top;" |Marco Ferrando | rowspan="1" style="vertical-align:top;" |27,141 | rowspan="1" style="vertical-align:top;" |0.5 | rowspan="1" style="vertical-align:top;" |-
| style="text-align:left;" |Workers' Communist Party | style="vertical-align:top;" |27,141 | style="vertical-align:top;" |0.5 | style="vertical-align:top;" |+0.5 | style="vertical-align:top;" |- | style="vertical-align:top;" |-
|- ! rowspan="1" style="text-align:left;vertical-align:top;" |Renzo Rabellino | rowspan="1" style="vertical-align:top;" |25,866 | rowspan="1" style="vertical-align:top;" |0.5 | rowspan="1" style="vertical-align:top;" |-
| style="text-align:left;" |List of Talking Crickets | style="vertical-align:top;" |25,866 | style="vertical-align:top;" |0.5 | style="vertical-align:top;" |+0.5 | style="vertical-align:top;" |- | style="vertical-align:top;" |-
|- ! rowspan="1" style="text-align:left;vertical-align:top;" |Others | rowspan="1" style="vertical-align:top;" |86,632 | rowspan="1" style="vertical-align:top;" |1.5 | rowspan="1" style="vertical-align:top;" |-
| style="text-align:left;" |Others | style="vertical-align:top;" |86,632 | style="vertical-align:top;" |1.5 | style="vertical-align:top;" |-1.7 | style="vertical-align:top;" |- | style="vertical-align:top;" |-
|- |- style="background-color:#E9E9E9" ! rowspan="1" style="text-align:left;vertical-align:top;" |Total coalitions ! rowspan="1" style="text-align:right;vertical-align:top;" |5,696,154 ! rowspan="1" style="text-align:right;vertical-align:top;" |100.0 ! rowspan="1" style="text-align:right;vertical-align:top;" |47 ! rowspan="1" style="text-align:left;vertical-align:top;" |Total parties ! rowspan="1" style="text-align:right;vertical-align:top;" |5,696,154 ! rowspan="1" style="text-align:right;vertical-align:top;" |100.0 ! rowspan="1" style="text-align:right;vertical-align:top;" |= ! rowspan="1" style="text-align:right;vertical-align:top;" |47 ! rowspan="1" style="text-align:right;vertical-align:top;" |=
<small>Source: Ministry of the Interior</small>