 She held the G.B.Dealey Regents Professorship while at the University of Texas from 1986 to 1989, served as the Dean of the Annenberg School for Communication of the University of Pennsylvania from 1989 to 2003 and Director of its Annenberg Public Policy Center from 1993 to the present.Her research areas include political communication, rhetorical theory and criticism, studies of various forms of campaign communication, and the discourse of the presidency.