"It is a sign of our time that the sitting chief executive of our country eschews the permanent meaning of the Declaration and the idea of fixity in the Constitution."
The constitution is a living document. Our founders were not arrogant enough to think they could foresee the challenges this country might face in 200, 500, or even a thousand years. That is why we can amend it. Anyone who doesn't understand this needs to go back to grade school and start over.