It may have been intentional; just letting everyone to they aren’t folding and not even bending a little
(Intentional)
That was my first thought. By making it seem like they (the media) discovered something, it gets more play then if the administration just announces it.
This clearly puts everyone on notice that Trump plans on keeping his promise about the “wall” and deportation.
I am sure some thought he did not really mean what he said.
Now they know.