No, there is no law under which a green card holder can petition for their brothers or sisters.. Only US citizens can petition for their siblings and even then, this will take at least 12 years.
You must be a U.S. citizen to sponsor a sibling. The process includes a waiting period for a priority date once the petition (form I-130) is approved by immigration. It can be more than 20 years. But you must be a citizen first.
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