Italian President Mattarella on collapse of government talks Italian President Sergio Mattarella explains why he refused the nomination of Paolo Savona for economy minister, a refusal which saw the end of Giuseppe Conte's brief mandate and plunged Italy into a new political crisis. Following Conte's exit, Mattarella has summoned Carlo Cottarelli, an economist formerly with the International Monetary Fund, to hold talks on Monday. IMAGES AND SOUNDBITES