Family members needs to be an immediate relative. This means they need to be defined as parents, spouse or perhaps an unmarried children who are under 21 years old. Learn on how to get american citizenship. Even when they are not an immediate relative, the green card holder could sponsor them as a Family Preference category.
Another thing about Green Card holders is that they are able to make contributions to U.S. election campaigns and non-citizens don’t have this option. Though they could donate to campaigns, a Green Card holder will still be restricted from having to vote in the U.S. elections. Learn more about Green Card Holder. This is because this is a right only meant for full U.S. citizens.