It's going to be entertaining to see just exactly what these guys in congress come up with as citations for the constitutional authority for bills if they actually do this enumerated powers citation deal.  I wonder if they will simply cite court cases which declared what they are doing or something similar as "constitutional".  That would be the simplest thing to do.  We will probably hear commerce clause a lot.  One reason I think they actually want this is that it will imply this sort of official pronouncement of constitutionality right there on the floor of congress, thereby psuedo-negating subsequent claims of unconstitutionality.  "What do you mean it's unconstitutional, we declared it constitutional when we read the bill, see it's right there in the congressional record"

I'd like the congress to begin by explaining how the constitution itself doesn't violate the principles laid out in the declaration.