Career
Caston ran for a seat in the Canadian House of Commons in a by-election on November 6, 1967. Parliament would be dissolved a year later and Caston ran for re-election in the new Rocky Mountain electoral district as Jasper—Edson was abolished. Caston would run against Sutlatycky for the second time.
An unusual event happened in that election as the Progressive Conservatives had 2 endorsed candidates running under their party banner for that district.
