If a naturalized U.S. citizen has a child abroad (born before the parent got their citizenship — the other parent is NOT a U.S. citizen), what are the steps to obtain paperwork for them to come to the U.S.? Does an I-130 need to be filled out, or a CRBA, or something else? Since the child is under 18, they should qualify for citizenship under the parent, but what would be required paperwork, if any. Would greatly appreciate advice on this matter, thank you in advance!