Ben Carson: Maybe the executive shouldn't have to enforce laws the SCOTUS declares constitutional

Is Ben Carson brilliant? Absolutely. Anyone who can perform brain surgery on children is brilliant. Ted Williams was brilliant too. He knew more about hitting than anyone alive. And I'd argue that Tony Banks is brilliant as well, because of his use of chord changes, unusual time signatures and complex song structures. But just because your mind operates at a very high level, and you are able to pair it with a particular skill set to do a difficult thing that most people couldn't ever conceive of doing, that doesn't mean you can do every difficult thing that requires brilliance. So does the brilliant mind and impeccable skill of a neurosurgeon, not to mention a clear inclination toward conservative policy ideas, make Ben Carson presidential material?