Historical piece considers the factors that contributed to Johnson's impeachment.

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.

Compares the impeachment proceedings against Johnson to those against Bill Clinton.

Features more than 200 excerpts about the historic proceedings from Harper's Weekly, the leading weekly newspaper of the era.

Provides a detailed account of the trial and explores the issues that surrounded it.

Examines the bitter political battle that caused the only impeachment of an American President.