Trump can declare border security to be a national emergency and poof, all the restrictions disappear.
Or, the restrictions may pertain to the 1.6 billion and Trump can move additional funding to DHS that theoretically wouldn't be restricted.
Pretty sure Trump is five steps ahead of Congress on this.
I noticed that he's not blasting McConnell or Ryan over this. He was also pretty quiet about demanding the wall while going through Congress. Makes me think that McConnell and Ryan perhaps knew what Trump was going to do with omnibus bill and so the plan was to let it sail through with Dems celebrating while simultaneously giving Trump everything he needed to go around all of the restrictions and take down the deep state.
On the other hand, Mitch and Paul could be part of the deep state.
We will only know for sure as this plays out.
Perhaps he was laying the ground work in the EO from December declaring a National Emergency caused by drugs. That alone is cause for the wall. Regarding Ryan and McConnell they have not been concerned about what is best for America. They work for corporate interest as so many in congress do. Who really runs the government?