American Presidents: Andrew Johnson: A collection of facts and trivia about Johnson's life.Impeachment Trial of President Andrew Johnson: Short biography of U.S. Supreme Court Justice Salmon Portland Chase tells how he stood against an angry U.S. Senate mob during the impeachment proceedings.The Impeachment of Andrew Johnson: Features more than 200 excerpts about the historic proceedings from Harper's Weekly, the leading weekly newspaper of the era.The Impeachment Trial of Andrew Johnson: Provides a detailed account of the trial and explores the issues that surrounded it.The Politics of Andrew Johnson: Examines the bitter political battle that caused the only impeachment of an American President.