Actually, he only needs a visa to enter the country. The Geneva Convention allows anyone to present at a border post and claim refugee protection (with a few exceptions, but visas aren't included in those).
There are various laws that require careers to prevent people without visas arriving at borders, but those are aimed at making it harder to ask for protection. He managed to work around those; mission accomplished.
There are various laws that require careers to prevent people without visas arriving at borders, but those are aimed at making it harder to ask for protection. He managed to work around those; mission accomplished.