My aunt is in America. Can my nephew go?

Yes, but to stay in the United States, you need application documents.

You can take the immigration exam and go to America because she is your aunt. After graduation, you can go to the United States with graduation certificate, degree certificate, school grades, honors won at home and other materials that can prove your strength and quality, and then apply for graduate students in economics or business in menstruation, USA. It is very advantageous to have American relatives, because the tuition fee for going to school after immigration is much less than that for going to school directly in the United States! As for the content and process of applying for immigration examination, you'd better consult some professionals yourself.