Talk about bad and shopworn ideas ("zombies" to use Paul Krugman's nice formulation): the proposed amendment that would enable states to repeal any federal statute if approved by two-thirds of the state legislatures is a notion that came and went, in various forms, in the 18th and 19th centuries. First it was called Nullification, and then it morphed into the Secessionist craze whose 150th anniversary we are about to commemorate. The Civil War was supposed to have relegated those ideas to the proverbial dustbin of history.
This nutty notion -- if adopted -- would transform the entire structure and character of our constitutional system. The difference between the Constitution (which supporters of this amendment say they revere) and its predecessor -- the Articles of Confederation -- is that the federal government under the Constitution framed at Philadelphia in 1787 is an independent entity whose laws act directly upon the people and is not dependent upon the approval or disapproval of the states. To provide states with a mechanism for disapproving of federal laws would not only undermine the institution of Judicial Review, but it would fundamentally alter the architecture of American government as we have come to know it in the past two hundred years.
This is a very bad idea whose time came and went centuries ago. It should be so regarded.