Rome, February 25 - A top aide to center-left leader Pier Luigi Bersani said Italy risked having to hold another round of elections as votes were tallied amid a tight race Monday. Stefano Fassina called the results "worrisome", adding there was "a risk of having to go back to the polls" as current projections suggested it would be "difficult to form a government". "It is evident that such a scenario would present very serious problems for Italy," he said. Recent projections from public broadcaster Rai showed the race in the Senate was neck and neck, with the center-right bloc headed by ex-premier Silvio Berlusconi 1.2% ahead of the center left. But a projection from Mediaset, the private broadcaster owned by Berlusconi, showed the center left to be in the lead.