Benjamin Harrison was the first U.S. president to use his position to try to save a species, the fur seal. He also set aside more than 13 million acres of forest reserves. This episode looks at the roots of conservation as a presidential responsibility.

Known for his forthrightness, Cleveland came clean when news broke that he had fathered an illegitimate child; yet he later covered up a cancer surgery at sea. Guests Matthew Algeo, Michelle Krowl and Roman Mars explore candor and the presidency.

How does one of the greatest beneficiaries of the spoils system end up being the president who passes civil service reform? Post reporter David Fahrenthold and Stateline editor Scott Greenberger tell the amazing story of Arthur's personal transformation.

Only 100 days into office, President Garfield was shot down in a train station by a disturbed office seeker. 'Destiny of the Republic' author Candice Millard, along with Michelle Krowl of the Library of Congress, examine the life cut short.

How does a vicious, close and disputed election spill over into a presidency? We examine the razor-thin election results for Rutherford B. Hayes, and the equally fine line he then had to tread as president during the end of Reconstruction.

Ulysses S. Grant's memoirs are considered the best ever written by a president. In this episode, Washington Post nonfiction book critic Carlos Lozada and biographer David Maraniss discuss what they found funny, touching and illuminating about the work.

What kind of president can repair America's deepest divisions? Michelle Krowl of the Library of Congress walks us through Andrew Johnson's time in office right after the Civil War and sheds light on why he struggled to bring the country together.

Doris Kearns Goodwin, author of 'Team of Rivals,' and Michelle Krowl of the Library of Congress guide us through Lincoln's love for language--and how his gift for writing and oratory became one of his greatest presidential leadership tools.

America is on the eve of civil war, and James Buchanan is alone in the White House as our first and only bachelor president. Historians Jean Baker and Jim Loewen, and The Washington Post's Jim Tankersley, explore the lack of personal and political union.

Pulitzer Prize-winning biographer James McPherson and historian Edna Greene Medford discuss Franklin Pierce's role in the country's progression toward civil war, as well as the personal tragedy that unfolded right before he took office.