An analysis this week by NBC of radio and TV political ads shows President Obama, challenger Mitt Romney and the SuperPACs aligned with them have already spent nearly $114 million in Ohio. That comes down to about $15 for every registered voter in the state. And given that polls show only about 4 percent of the voters have yet to make up their minds, it comes down to about $365 for every undecided voter.

Ohio has eight distinct television markets, which can make it an expensive place to get a message across statewide. But Peter Brown of the Quinnipiac Poll told an Akron Press Club luncheon that  challengers in particular can’t afford to ignore the power of TV, which is why so little airtime may be left for the Senate and Congressional races.

“The question is, is there any  TV ad time available that the presidential candidates don’t use. The way you move voters if you’re a challenger is TV. Television moves numbers. And if it doesn’t, it means you’ve got a problem.”

The NBC analysis shows President Obama and his allies have spent nearly $61 million in Ohio, while the Romney camp has spent about $57 million. 

1. Florida - $119.7 million
2. Ohio - $113.8 million
3. Virginia - $83.9 million
4. North Carolina - $57.6 million
5. Colorado – $55.0 million
6. Iowa - $47.3 million
7. Nevada - $37.4 million
8. New Hampshire – $25.5 million
9. Pennsylvania – $19.3 million
10. Wisconsin - $11.8 million
11. Michigan - $8 million
12. Minnesota - $3.2 million
13. New Mexico - $49,000

Total spending: $581 million