Any judge that doesn't know the difference between immediate family and extended should not be a judge . The government simply used the current definition of close family in existing immigration laws and rules.
Chin clearly lied when he said Trump did it with no legal basis. 
Why isn't Chin suing the federal government to have the existing immigration laws and state department rules declared unconstitutional? Is it only the Muslims from 6 countries that Chin cares about? Or was it more about grandstanding to create name recognition with the public?