Sanna was first elected as a deputy in the
Chamber of Deputies for Cagliari-Sassari-Nuoro-Oristano on 25 June 1987. She was a representative of the PCI until 13 February 1991 when the party was dissolved, after which she joined the
Democratic Party of the Left (PDS). She was a member of the social affairs commission. Sanna was re-elected in the
1992 general election and served as a member of the XI commission on labour. She left office on 14 April 1994. She was the mayor of
Sassari from 1995 to 2000 with the
Democrats of the Left. She ran as an independent for a second term in 2000 but she lost to
Gian Vittorio Campus, a candidate for the
National Alliance. == References ==