Forty years ago, in the summer of 1974, the nation was gripped by the growing crisis of the Watergate scandal, which was reaching its zenith. And a freshman Republican congressman from Virginia found himself at the center of the storm.Caldwell Butler, who represented the Sixth District in the House of Representatives, sat on the Judiciary Committee, which was debating whether to send Articles of Impeachment against President Richard Nixon to the full House.On July 25, 1975, Butler made a dramatic announcement during a committee meeting: He would vote for the articles of impeachment when they c...