Smith penned it when he was in Nashville earlier this month for the second debate between the two standard bearers.
It debuted at No. 140 on the Top 150 Country Music chart, and Smith says it's "the only country blues charted ... song that's been endorsed by both presidential candidates!" Just call Smith the -- Great Uniter!
He played it for McCain when heearlier this week, and for Obama when he Wednesday.
Obama said he liked what he heard:
McCain was of the same mind:
The video of the complete song is below:
Tell us what YOU think of Harry's song, by going to the comments area below!