Possible Clues:

• State V.I.P.: Abbr.
• State's #2 exec
• Statehouse equiv. of a backup QB
• No. 2 in many statehouses
• No. 2 person in some states
• State's second-in-command (abbr.)
• No. 2 exec in most states
• No. 2 in a statehouse
• Statehouse VIP
• 1916-18 post for Calvin Coolidge: Abbr.