Possible Clues:

• Not committed to a pol. party
• State whose quarter says 'Crossroads of America': Abbr.
• Swing voter, perhaps: Abbr.
• Terre Haute's state: Abbr.
• Gary loc.
• Not Rep. and not Dem.
• Like Bach's 'Magnificat'
• Pacers' home: Abbr.
• Line in a voting booth: Abbr.
• Evansville's st.