Oregon became first in the nation to legalize the therapeutic use of psilocybin, the compound found in psychedelic mushrooms. But four years later, voters in a growing list of its cities have banned the substance. (AP Video by Claire Rush, Manuel Valdes)

AP Explains: Growing number of Oregon cities voting to ban psychedelic mushroom compound psilocybin

Oregon became first in the nation to legalize the therapeutic use of psilocybin, the compound found in psychedelic mushrooms. But four years later, voters in a growing list of its cities have banned the substance. (AP Video by Claire Rush, Manuel Valdes)