Before becoming the principal author of the Declaration of Independence, Thomas Jefferson was a successful lawyer in Virginia. His legal training influenced the way he thought about government and politics, yet this earlier part of his career has largely been ignored by historians. David Konig, professor of history and law at Washington University in St. Louis, has spent years analyzing the complex legal notes and papers that tell the story of Jefferson's time as an attorney. This Presidents' Day, Konig sheds light on this fascinating and neglected aspect of Jefferson's life and mind.