Possible Clues:

• Ralph who wrote 'Only the Super-Rich Can Save Us!'
• Ralph __, US campaigner and frequent presidential candidate
• Also-ran of 2000
• Ralph who wrote 'Unsafe at Any Speed'
• Politico Ralph
• 2000 presidential contender
• Former presidential candidate who wrote 'Only the Super-Rich Can Save Us!'
• Corvair investigator Ralph
• See 15
• Ralph who ran for president four times