Gwen Ifill gets perspective on President Obama's Tucson speech from historians Ellen Fitzpatrick And Michael Beschloss; Kari Watkins, the Executive Director Of The Oklahoma City National Memorial And Museum; and The Reverend Janet Vincent of Saint Columbia's Episcopal Church In…

President Obama's address in Tucson will echo a broader role presidents must play as leaders of national mourning. Jim Lehrer looks back on presidential responses to national crises with historian Michael Beschloss and Ellen Fitzpatrick, professor of history at the…

In the wake of the passage of health care reform, Jim Lehrer talks to historians Ellen Fitzpatrick and Richard Norton Smith and columnists Michael Gerson and Clarence Page about what the victory means for the Obama presidency.

For the first time, some of the condolence letters sent to First Lady Jacqueline Kennedy after President John F. Kennedy's assassination in 1963 have been published. Gwen Ifill talks to historian Ellen Fitzpatrick about the letters and her book.