How did Romans perceive the changing relationships among leaders, the people, and the public sphere as their commonwealth (res publica) fell under the control of an emperor? This paper examines Ovid’s uses of the Latin adjective publicus, ‘public, common, open’, to explore strands of implicitly ‘republican’ political thought behind his poetic corpus. Ovid first celebrates Augustus’ material benefactions as common goods for private consumption; then dramatises the tragic consequences of arbitrary domination; and finally, from exile, treats the emperor himself as (...) a public property, subject to his people’s spectatorship and sovereignty of judgment. A final section draws on Ovid’s thinking on privacy, publicity, and information access to explore themes related to America’s ‘imperial presidency’, from the Founders’ emphasis on a free press to the recent interplay of secrecy, celebrity, and ‘sunshine’ laws. (shrink)