Actually, yes, you do need to list the ways, because so far no one has been able to find a single law Denver is violating, and not a dime of any federal money that would be at risk of losing. Denver has the lowest taxes in the metro area. Stop calling people "dopes" too. You called me that in an earlier reply and that is a violation of civil comments. 

In another reply, which no longer is visible here so it apparently was found uncivil as well, you told me Denver was violating the law by not enforcing federal immigration law. Are you under the false impression that Denver has a legal obligation to enforce federal immigration law? That must be the source of your confusion, because there is no such obligation. The Constitution reserves immigration issues to the federal government, not the states and cities. Denver is acting completely legally.