This book is a defense of political liberalism as a feminist liberalism. The first half of the book develops and defends a novel interpretation of political liberalism. It is argued that political liberals should accept a restrictive account of public reason and that political liberals’ account of public justification is superior to the leading alternative, the convergence account of public justification. In the second half of the book, it is argued that political liberalism’s core commitments restrict all reasonable conceptions of justice to those that secure genuine, substantive equality for women and other marginalized groups. Here it is demonstrated how public reason arguments can be used to support law and policy needed to address historical sites of women’s subordination to advance equality; prostitution, the gendered division of labor and marriage, in particular, are considered.