and Centre Democrats immediately conceded The Union's victory, while other parties, like Berlusconi's Forza Italia and the Northern League, refused to accept its validity, right up until 2 May 2006, when Berlusconi submitted his resignation to then President of the Republic Carlo Azeglio Ciampi. 2008 electoral victory In the run-up to the 2006 general election, there had been talk among some of the coalition members of the House of Freedoms about a possible merger into a "united party of moderates and reformers". Forza Italia, the National Alliance of Gianfranco Fini, and the Union of Christian and Centre Democrats of Pier Ferdinando Casini all seemed interested in the project. Soon after the election, Casini started to distance his party from its historical allies. On 2 December 2006, during a major demonstration of the centre-right in Rome against the Prodi II Cabinet, Berlusconi proposed the foundation of a Freedom Party, arguing that the people and voters of the different political movements aligned to the demonstration were all part of a people of freedom. On 18 November 2007, after claiming the collection of more than 7 million signatures (including that of Umberto Bossi) demanding that then President of the Republic Giorgio Napolitano call a fresh election, Berlusconi announced from the running board of a car in a crowded Piazza San Babila in Milan that Forza Italia would soon merge or transform into The People of Freedom, also known as the PdL (Il Popolo della Libertà). Berlusconi also stated that this new political movement could include the participation of other parties. Both supporters and critics of the new party called Berlusconi's announcement "the running board revolution" (Italian: la rivoluzione del predellino). After the sudden fall of the Prodi II Cabinet on 24 January, the break-up of The Union, and the subsequent political crisis, which paved the way for a fresh general election in April 2008, Berlusconi, Gianfranco Fini and other party leaders finally agreed on 8 February 2008 to form the PdL joint list, allied with Lega Nord of Bossi and the Movement for Autonomy of Raffaele Lombardo. In the snap elections held on 13–14 April 2008, this coalition won against Walter Veltroni's centre-left coalition in both houses of the Italian Parliament. In the 315-member Senate of the Republic, Berlusconi's coalition won 174 seats to Veltroni's 134. In the lower house, Berlusconi's conservative bloc led by a margin of 9% of the vote: 46.5%