Nori was a member of the New South Wales Legislative Assembly representing the electoral districts of McKell (1988–1991) and Port Jackson (1991–2007) for the Australian Labor Party. She served in a range of ministerial portfolios between 1999 and 2007. Since leaving politics, Nori has been appointed to a number of roles as a non-executive director.
A member of the Australian Labor Party, Nori represented two electorates successively: the newly created electorate of McKell between 1988 and 1991 (which was abolished at the 1991 state election; and the newly created electorate of Port Jackson between 1991 and 2007 (which was again abolished at the 2007 state election).