This is the first comprehensive history of the Womens Joint_x000B_Congressional Committee (WJCC), a large umbrella organization_x000B_founded by former suffrage leaders in 1920 in order to coordinate organized womens reform. Encompassing nearly every major national womens organization of its time, the WJCC evolved into a powerful lobbying force for the legislative agendas of twelve million women, and was recognized by critics and supporters alike as the most powerful lobby in Washington.? _x000B__x000B_Through a close examination of the WJCCs most consequential and contentious campaigns, Jan Doolittle Wilson demonstrates organized womens strategies and initial success in generating congressional and grassroots support for their far-reaching, progressive reforms. By using the WJCC as a lens through which to analyze womens political culture during the 1920s, the book also sheds new light on the initially successful ways women lobbied for social legislation, the inherent limitations of that process for pursuing classbased reforms, and the enormous difficulties faced by women trying to expand public responsibility for social welfare in the years following the Nineteenth Amendments passage._x000B_