So we've dealt with Muslim Ban 1.0 and it's been blown off, mostly because it was a ham-fisted attempt by the Trump administration at "homeland security" which was neither constitutional nor potentially very effective. After figuring out (slowly!) that fighting it in the courts was a non-starter, dear Drumpf has come up with Version 2.0 of his Grand Plan and is rolling it out even as we speak. Problem: according to a document prepared by the Department of Homeland Security strongly suggests that any ban of ANY sort would be a waste of their time and resources.
How do I know this? Ya see, I know a guy ... or a gal, actually ... name of Rachel Maddow ... and she's got the goods, and for that matter, the documentation: