How is Theodore Roosevelt described in the book, The Bully Pulpit: Theodore Roosevelt, William Howard Taft, and the Golden Age of Journalism?

According to the author, Roosevelt, perhaps overcompensating for childhood fragility, presented himself as a "Rough Rider" or rugged specimen of outdoor manhood with big ideas, big power and big connections. Roosevelt's speeches were fiery where Taft's were innocuous, his viewpoints on social and ethical issues sharply defined.