Giordano was born in
Alessandria, Italy. After graduating in political science at the
University of Turin, he started his career as a journalist writing for some local weekly and daily publications, such as the
Catholic weekly publication
Nostro tempo in 1994, where he met the journalist
Marco Travaglio, and ''L'informazione''. In 1996, he became an editorialist at , where he collaborated with
Vittorio Feltri. Since 1997, he has appeared in some talk shows and debate programmes on
RAI as commentator with the journalist
Gad Lerner. Some sources have attributed his voice condition to Klinefelter syndrome, although he has denied this. From 2000 to 2007, Giordano was editor in chief of
Studio Aperto news program on television channel
Italia 1. From 2007 to 2009, he was editor-in-chief of
Il Giornale, replacing
Maurizio Belpietro. He then returned to
Mediaset as director of
Mediaset News (2009–10). In 2011, he moved to management of Mediaset All-News
TGcom24. In 2013, he directed the Videonews section. In 2014, he was appointed as director of
TG4, and in 2018 he was appointed head of Strategies and Development of Mediaset information. As a journalist, after writing for
Libero, he writes for Belpietro's
La Verità. Since 2018, he has led the program
Fuori dal coro on
Rete 4. == Sanctions and complaints ==