This book develops a theory of presidential public leadership taking into account the partisan nature of the political debate and the role of presidents.This book provides a fresh look on the ongoing debate about the influence of speeches of presidents on public opinion. It will be of interest to scholars and students who study the presidency and political parties, as well as policymakers, political advisors and party leaders who wish to understand the effects of the public actions of the president on public opinion.This book provides a fresh look on the ongoing debate about the influence of speeches of presidents on public opinion. It will be of interest to scholars and students who study the presidency and political parties, as well as policymakers, political advisors and party leaders who wish to understand the effects of the public actions of the president on public opinion.By bringing together two bodies of literature - the presidency and political parties - this book makes two important contributions. First, it addresses the gap between presidential public actions and the perceived limited effect they have on public opinion. By examining the short-term effect of speeches of presidents on the entire public, the long-term effect of the speeches on their partisans, and on the reputations of their parties for handling policy, the book shows that presidents are effective leaders of public opinion. Second, the book adds to the scholarly interest in how political parties are viewed by the electorate in terms of policy substance. It suggests that Americans possess coherent reputations of the parties for handling policy challenges, and that these reputations contribute to the party identifications of Americans. The effect of presidents on the reputations and, in turn, party attachments position them as leaders of the party system.1. Presidents, public opinion, and the political parties; 2. Assessing presidential communications; 3. The effect of presidential rhetoric onlB