The new $621 billion Capitol Visitor Center features an exhibition hall that is dominated by a very large marble wall called "The Wall of Aspirations." Dr. Matthew Spalding of The Heritage Foundation says the exhibit is not about the Constitution's limits on powers delegated to the government, but instead lists aspirations such as unity, freedom, common defense, knowledge, exploration, and general welfare, and then points back to where they are found in the Constitution.

"The job of Congress, according to the exhibit, is to achieve these aspirations. So the old notion that says Article 1, Section 8 [of the Constitution] lists the powers that Congress has -- these are the things that Congress can do. [But] that old notion is set aside," he contends. "In its place we have this kind of open-ended 'aspirations' which Congress is going to define and achieve. And to get there, they do very selective quoting and...mangle many phrases in the Constitution to get them where they want to go."