"Mrs. Johnson was one of our most important First Ladies. Quietly but firmly, she advised LBJ on rhet..." — Michael Beschloss

Too few presidents have steeped themselves not just in Lincoln's words but his deeds, which is why Obama's acquaintance with the great man is so compelling - especially since, like President-elect Lincoln, Obama will take office at a perilous time.

Troubled celebrities are a dime a dozen.

Historians sometimes view presidents very differently from the way the public did at the time. Sometimes they don't.

Presidents fall into second-term slumps for different reasons.