Even if client has made a false claim to U.S. citizenship, the false claim ground of inadmissibility requires it to be done for some "purpose or benefit" under federal or state law, which does not include an employment benefit. Matter of Oduor, A75 904 456 (BIA March 15, 2005), available on lexis and westlaw ("citizen or national" assertion on an I-9 form does not constitute a false claim of U.S. citizenship for either deportation or inadmissibility purposes).