Related Clues:

• Second in command
• Number two
• Prez's stand-in
• 40-Across, informally
• No. 2
• Dick Cheney, e.g.
• Nixon, once
• Prez backup
• Prez's #2
• #2 man, informally
• Bush, in the 80's
• Prez's backup
• Number-two exec
• L.B.J. or R.M.N., once
• Prexy's associate