â€śYou know we have talked about this at the state legislature before, nullification. But, bottom line is, as U.S. Senator why should we be passing laws that the states are considering nullifying? Bottom line: our legislators at the federal level should not be passing those laws. Weâ€™re rightâ€¦weâ€™ve gone 200-plus years of federal legislators going against the Tenth Amendmentâ€™s statesâ€™ rights.
We are way overstepping bounds as federal legislators. So, bottom line, no we should not be passing laws as federal legislatorsâ€”as senators or congressmanâ€”that the states would even consider nullifying. Bottom line.â€ť
Ernst, a first-term state senator, has never explicitly supported pro-nullification legislation in her time in the Iowa state senate. However, she co-sponsored a resolution that says â€śthe State of Iowa hereby claims sovereignty under the Tenth Amendment to the Constitution of the United States over all powers not otherwise enumerated and granted to the federal government by the Constitution of the United States.â€ť It was introduced in response to â€śmany federal mandates [that] are directly in violation of the Tenth Amendment to the Constitution of the United States."
States cannot nullify federal laws, of course.