Giorgio Napolitano has pitted the weight of his presidency and his prestige against the delaying tactics that currently tie the Senate into knots. The introduction of 7,800 amendments to the government’s proposals for constitutional reform is already causing “serious damage” to Italy, said Napolitano Wednesday. Meanwhile, former Premier Silvio Berlusconi once again became a major player after an appeals court overturned his seven- year conviction for alleged relations with a minor accused of prostitution.