The Constitution is a limit on Federal government. To discover the limits on City government, you should look at the charter of the City (well, unless Obama has his say and Federalizes everything).
I admit that I am a Federalist, but only in the same way that I think that Alexander Hamilton was a Federalist. Hamilton believed in a stronger Federal government than was generally accepted would be allowed or characterized by the Constitution that was under consideration when the Federalist Papers were written.
But we have gone so far beyond what Hamilton thought was necessary for a good union of states, that I am sure now he would easily be considered a strong State’s Rights advocate.
And people back then who were advocates of stricter state’s rights appear in comparison today to be secessionists, in my opinion.
The fact that The Constitution is indeed supposed to be a limit on federal government is the very reason that people like Obama see it as flawed, because it does not address “issues” such as “social justice” which as we all know, is socialism and redistribution of wealth.