Randy Barnett is a Georgetown University Law Professor and a legal adviser for the Convention of States Project. In the video below, Dr. Barnett explains why one amendment isn't enough to effectively limit the power of the federal government.
Dr. Barnett supports the Convention of States Project because it is the only organization that allows for a package of amendments to curb the abuses of Washington, D.C., impose fiscal restraints on the federal government, and require term limits for its elected officials.
http://youtu.be/-ZOe_knQrGU?t=27m30s