Doris Kearns Goodwin on the qualities of an effective leader

Pulitzer Prize-winning historian Doris Kearns Goodwin has researched American presidents for 50 years. Over her career, she’s written extensively about the lives of Presidents Abraham Lincoln, Theodore Roosevelt and Franklin Delano Roosevelt. Goodwin joins “CBS This Morning” to discuss her new online Master Class course where she teaches how leadership qualities can define a commander-in-chief.