Warnke received a bachelor's degree from Reed College in 1973. She went on to receive a master's degree from Boston University in 1978, and a doctorate, also from Boston University, in 1982. Prior to her current appointment, Warnke held an appointment as Assistant Professor of Philosophy at Yale University from 1982 to 1988, being promoted to Associate Professor in 1988, and staying until 1991 when she moved to Riverside. Besides her main appointment in the Philosophy and Political Science Departments, Warnke also held an additional appointment as a Professor of Women's Studies at UCR between 2001 and 2004. Throughout these appointments, she has also served in a variety of roles within her departments, in UCR's Academic Senate, and in the American Philosophical Association.
Warnke has published four books ; Gadamer: Hermeneutics, Tradition, and Reason in 1987, Justice and Interpretation in 1993, Legitimate Differences: Interpretation in the Abortion Controversy and Other Public Debatesin 1999, and After Identity: Rethinking Race, Sex, and Gender in 2007. She has also written a number of book chapters, peer-reviewed journal articles, and encyclopedia articles, including pieces in ', ', Dissent, Philosophy & Social Criticism, the Journal of Social Philosophy, the Encyclopedia of Ethics, A Companion to Metaphysics, and the Companion to the Philosophers among many others. Warnke is a member of the editorial board of . Her term started in 2000.
After Identity
In After Identity, Warnke suggested that racial, gender, sexual, and other identities are lenses through which people view the nature of themselves or others and that, just as is the case with the interpretation of art, no single identity is uniquely correct or complete - i.e., no one's perceived identity holds unique or whole truth, and some identities may be meaningless in contexts other than that in which they were conceived. Warnke frames many of her gender-identity based arguments throughout the book using the case study of Bruce Reimer, someone who lost his penis shortly after birth during a mangled circumcision, and, having been brought up as a girl, rebelled against that identity, and extends the conclusions she draws from these arguments to questions of racial identity.