I think this move will take the pressure off the senate to actually get a deal done. A regulation can be removed but it usually takes 2- 3 years if I am remembering correctly and not done through executive order. This would only be a false sense of security.
I get the feeling that dems don't want to deal on Daca and dreamers for Border security and asylum reform. Seem like a sensible deal to try and end what is happening at the border.
Their approach right now makes no sense.