David O. Stewart is an American author and attorney who writes both nonfiction historical narratives and historical fiction. He lives in Potomac, Maryland. His nonfiction works examine key periods and figures in American history. These include George Washington: The Political Rise of America's Founding Father, Madison's Gift: Five Partnerships That Built America, American Emperor: Aaron Burr's Challenge to Jefferson's America, Impeached: The Trial of President Andrew Johnson and the Fight for Lincoln's Legacy, and The Summer of 1787: The Men Who Invented the Constitution. Stewart has also written historical fiction novels, including The New Land, The Lincoln Deception, The Wilson Deception, and The Babe Ruth Deception.