Here’s the Court Order from Hawaii at least temporarily stopping Trump’s Travel Ban 2.0 The ruling seems to take Trump’s campaign statements as evidence of a religious bias.
However, five GOP judges in the Ninth Circuit have already indicated that the second travel ban may be within the law, CNN story here. That's after Trump attacked the Ninth Circuit in a speech tonight. Trump called judges "Wise Guys", the name of a well-known youth Christian play.
Persons who have never been in the country might not have constitutional rights before entry.
Also the ban appears to be closely related to the inability of affected countries to cooperate with DHS, which might be viewed as falling within the president’s discretion, even if many observers disagree.
However today the Cato Institute released a paper backing up claims of generally much lower rate of criminality of immigrants, even from unstable and Muslim countries, paper by Michaelangelo Landgrave and Alex Nowrasteh.
A Maryland judge joined in with another restraining order,