"There is no such thing as a global anthem, a global currency or a global flag," Trump said to great applause from thousands of conservatives.
While Trump is absolutely correct with respect to an anthem and flag, I believe cryptocurrencies make him wrong on currency. Bitcoin is effectively a global currency. That is one of the things I have always liked about it. It's too bad the creator could not figure out a solution to deflationary bias. But it may well be remembered as a pioneer.
It's global but few countries do not allow it as far as I know.