Sorry for the naïve question, but I'm just really curious. What would happen to Bitcoin price if, for example, Trump declared all cryptocurrencies forbidden?
Actually, your example is a valid reason to affect the btc's price. That is a serious news and we can also say that government has also a great part to affect the cryptocurrency market. Some may not be convinced about this, but if you can just list down all the reasons why the price is being dragged down, it may take a part.