In the half decade or so since Darrow’s diatribe, a simple and outlandish idea, percolating in rural Oregon since the 1960s—what if we were just Idaho?—has grown into a grassroots secession movement. Last month, Harney County, in the high desert of eastern Oregon, became the state’s eighth to pass a nonbinding ballot measure supporting Darrow’s proposal. Move Oregon’s Border signs now dot the region’s empty highways, and Mike McCarter, a retired agricultural nurseryman and gun-club owner who runs a group pushing for the boundary reshuffle, travels the state in a bright-red trucker hat bearing the slogan. “We don’t care to move, because we’re tied to our land here,” he told me recently. “So why not just allow us to be governed by another state?” He mentioned a supporter so certain that her property will become part of Idaho that she already flies its state flag on her lawn. “We’re going to be Idaho,” she told him.