The voice behind the candidate

There is art and science behind political advertising. Campaigns fret over when to go positive, when to go negative, and how to deliver ads so voters get the message, without feeling like they're having a message pushed on them. It's delicate work, and those who make the ads are focused on how to get the most bang for their 30 or 60 seconds.

To learn more about that, and have a little fun, MPR's Loop host Jeff Horwich talked with Gary Groomes and Susan Fuller, two voiceover artists in the Twin Cities who get a lot of work -- nationwide -- when election season rolls around.