There are varying interpretations of the original intent of Congress and of the ratifying states, based on statements made during the congressional debate over the amendment, as well as the customs and understandings prevalent at that time.[42][43] Some of the major issues that have arisen about this clause are the extent to which it included Native Americans, its coverage of non-citizens legally present in the United States when they have a child, whether the clause allows revocation of citizenship, and whether the clause applies to illegal immigrants.[44]