Twenty years ago today, Richard Nixon dodged the bullet of impeachment by resigning as president of the United States. The Watergate scandal that caused his political demise began to unravel with news reports of burglary in 1972 at Democratic Party headquarters. It became clear that Richard Nixon had played a key role in covering up the crime. During the last decade, Nixon worked hard to rehabilitate his reputation. But upon his death earlier this year he was remembered widely as the only president to step down before his term of office expired.