According to the US federal government, this guys is white:

Yes, if following the categorization of race in the upcoming Census, which directly takes its taxonomy cues from the Office of Budget and Management, Sudanese refugee turned American olympian (Beijing 2008) Lopez Lomong. According to the Office of Management and Budget's Directive 15, passed in 1997, "whites" are defined as descendants of “the original peoples of Europe, North Africa or the Middle East.” Hispanic or Latino people, according to the same government agency, are of “Mexican, Puerto Rican, Cuban, Central or South American or other Spanish culture.” Considering that Sudan is considered a part of "
North Africa," this would render Lomong and other nationals from Sudan white, while the famous Cuban below, could receive minority protection for her nonwhite federal classification:

