I agree that the rule of law must apply, and we will probably not have the final word on that until this case is heard at the Supreme Court. Nevertheless, the silent majority of public opinion in the US appears to be on Trump's side. According to the Rasmussen polling organization (which has been conducting public opinion polls in the US since 2003) 52% of likely U.S. voters favor a ban that keeps refugees from the seven indicated countries from entering the United States for the next four months while 43% are opposed.