The WHO Farm, or the White House Organic Farm Project, is a simple idea with a simple purpose: to get the next president to grow an organic garden on the lawn of the White House.

Daniel Simon Bowman and Casey Gustowarow are behind the wheels of this project, both literally and figuratively. The two have been driving across the country in a bus with a bottom side up promoting their petition for The WHO Farm. I met up with the traveling duo at the Austin Farmer’s Market Saturday to hear about the project and see their topsy-turvy bus. Check out the video here.

The WHO Farm bus will be in New Orleans, La. throughout the weekend and moving east until it arrives in Washington, D.C. around Election Day. Check out the full itinerary and learn more about The WHO Farm.