The critique of my 1994 article by Stonecash and Agathangelou reflects a series of misconceptions and misunderstandings—about measures, methods, arguments, and findings. In this rejoinder I attempt to correct these. In addition, I clarify my methods and findings. First, I show that a formal statistical test indicates that limiting the analysis to the northern states is justified. Less formally, the professionalism hypothesis cannot work the same in the South as in the North unless levels of Democratic legislative strength can rise above 100%. Second, although clearly inferior to a pooled analysis, I show that a disaggregated (state-by-state) analysis is far more supportive of the professionalization hypothesis than the flawed results Stonecash and Agathangelou report. Third, despite the repeated assertions of Stonecash and Agathangelou, I demonstrate that there is no evidence that a long-term partisan realignment to the Democrats is occurring, and that, contrary to their methodological recommendations, the variables included in my analysis would capture it if it were. Finally, Stonecash and Agathangelou interpret my research as indicating a lack of relationship between constituencies and who gets elected. That is simply not a correct reading of my article.