Idaho does not exist. It didn't exist when it was "part of the United States", and it most definitely kept on not existing when it "joined Pacifica". No one "from Idaho" exists either, and if you've "been there" you've probably been to Utah, which is just as boring but at least is real. It is theorized that Idaho is a black hole, part of Canada, or the place where B-52 bombers go when they die.