Minneapolis immigration attorney Vincent Martin says if a court finds an immigrant gained status as a permanent resident or citizen through fraud or misrepresentation, that status can be revoked and the person deported.
"The first thing they will have to do is prove or establish or meet the government burden that he is not eligible for the status he holds, whether that's U.S. citizenship or permanent residence, Martin said. "So they will have to go through that process before the immigration service can act against him."
The Department of Justice could bring an immigration action against Karkoc in federal court. If a judge says he defrauded the government when he immigrated here, Karkoc could be deported.
The Department of Justice won't say whether it's investigating Karkoc, but said in a statement, "As a general matter the Department of Justice continues to pursue all credible allegations of participation in World War II Nazi crimes by U.S. citizens and residents."
Even today, the U.S. permanent residency application form requires applicants to disclose whether they were involved with the Nazi government between 1933 and 1945.