(born June 10, 1932) is an American attorney and politician in the Democratic Party and later lobbyist.
He represented Louisiana in the United States Senate from 1972 to 1997.
He was re-elected to several terms.
Beginning his political career when elected as a state representative from Caddo Parish in 1964, Johnston also served in the state senate before winning election to the U.S.
English: The source of this file is the United States Senate Historical Office. I got permission (to post this photo on Wikipedia) over the phone, in person, from Ms. Heather Moore, the United States Senate Photo Historian. The URL contact page for Ms. Moore is http://bioguide.congress.gov/copyright.htm. Ms. Moore said that the photo is in the public domain, but that credit for the photo does need to be posted as "credited to the U.S. Senate Historical Office." The URL where this photo was retrieved from is: http://bioguide.congress.gov/scripts/biodisplay.pl?index=J000189