SPOKANE, Wash. — Nearly two decades after the Aryan Nations’ Idaho compound was demolished, far-right extremists are maintaining a presence in the Pacific Northwest. White nationalism has been on the rise across the U.S., but it has particular resonance along the Idaho-Washington border, where the Aryans espoused hate and violence for years. The neo-Nazi group was based near Hayden Lake, Idaho, starting in the 1970s, and eventually was bankrupted in a lawsuit brought by local activists and the Southern Poverty Law Center.