OK, some brakes on the ‘unlimited spending’ remarks.
per candidate spending is still limited, and the court emphasized that was legitimate.
What broke was aggregate spending. Yes, that’s bad. It means a person or organization can put money in every single race. There is some increased leverage due to echo.
But a donor cannot send unlimited money to, say, Cruz for President. Not personally and directly. (And limits both as a PAC and as a ‘general’ subject were already released some time ago.)