The owner of car washes in two Wisconsin cities says his amateur attempt at electoral polling has favored Democratic U.S. presidential nominee Barack Obama.

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Businessman Dan Foor said he conducted an unscientific poll at his car wash locations in Madison and Middleton by designating one of his touch-less wash bays for Obama and another for Republican U.S. presidential nominee John McCain, the (Madison) Wisconsin State Journal said Wednesday.

Tallies of the use of the labeled wash bays as of Tuesday found Obama ahead of McCain, 324 washes to 281 in Middleton and 486 to 421 in Madison.

The promotion began in September and usage is determined by payment machines next to each wash bay.

Despite his amateur polling, Foor admitted to the State Journal that he doesn't know yet which candidate or corresponding wash bay he would chose.