Pier Luigi Bersani's center-left party said it would back Romano Prodi for president on Friday morning, even though the leader of the center-right bloc, Silvio Berlusconi, has threatened to force new elections if Prodi becomes president. Italy's parliamentarians are returning to the polls once again on Friday to try to elect a president after two rounds of voting proved unsuccessful on Thursday. Cracks appeared in the center-left Democratic Party (PD), the largest group in the lower house of parliament on Thursday, when Bersani's preferred presidential candidate, Franco Marini, failed to achieve a two-thirds majority ... (full story)