I doubt that Clinton and her campaign can affect on bitcoin somehow, same as Trump and his campaign. I don't know reasons why Clinton is against bitcoin. But I know that politic hasn't any effect on bitcoin. Bitcoin's price created only from it's popularity. I even didn't notice that the price gone down. This days it seems frozen on the level a bit higher than 600$. Maybe just bitcoin buying became lower for a moment and that provoked the price to go down.