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ANSWER: Asylum is one way to get a green card, and it can only be requested from inside the US. It will not be granted as a way to bridge the gap of time between filing the I-130 and waiting out the green card process. If he gets asylum or refugee status, it will be the basis of his green card, not your I-130 petition. I don't know the specifics and I don't have enough information here to tell you if he qualifies. But I do know that asylum/refugee status is based only on persecution or a well-founded fear of persecution, based on political opinion, race, ethnicity, religion or membership in a particular social group. And he has to show that the government persecuted him, or is unwilling or unable to protect him from persecution on that basis.
The only other option would be to bring him here under humanitarian parole. Here is information on that: https://www.uscis.gov/humanitarian/humanitarian-parole
This is a completely discretionary basis and there is no appeal if it is denied.
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