Related Clues:

• Veep under 21-Down
• 1970s president
• Johnson's successor
• Veep who resigned in disgrace
• First Greek-American vice president
• Resignee of 1974
• He once placed a 'long-distance call' to Aldrin and Armstrong
• American president known as tricky Dicky
• 37th President of the US
• Ford's predecessor in 1973
• Veep who resigned in 1973
• '70s president
• Lyndon Johnson successor
• 'Six Crises' writer
• Whom Goldwater called 'the most dishonest individual I have ever met in my life'