The assumption going into all this was that they didn't support the end goal. Now, as it stands, the lawsuit that the states filed will probably die because the court will say that Congress gave tacit approval.
Personally, I think they should have sent the funding bill from the House and put language in there reaffirming current federal law (i.e. no work permits) and requiring deportation of criminal illegals (just like 0 said in his speech). If what he's doing is just prosecutorial discretion, then that doesn't change anything, right?