> but it's important to note that in the mean time some people with a (previously) legal right to enter the US were turned away because of Trump's recent execut

> but it's important to note that in the mean time some people with a (previously) legal right to enter the US were turned away because of Trump's recent executive order. This is false. U.S. visas (regardless of type) are different from those issued by other nations. A US visa does not give someone the right to enter the United States, it gives them the right to go to a port of entry (like an airport) and ask for permission to enter the United States. Trump's order added additional scrutiny for border agents for people with visas from the seven countries. Many (most?) of those people were admitted, and the ACLU suit forced border agents to keep people "in limbo" in the US while that determination was made (vs. sending them back and forcing them to get a new visa—IMO, this is the right decision and I'm happy the courts made it). But your specific assertion, that they had a legal right to enter the US is false. At best, they had a reasonable expectation that once they arrived, they would be let in without any difficulty or delay.