If he could, he would but it's hard to put the toothpaste back into the tube. I'm sure in time he will come in for the final death blow to the program however.
I can only wonder how things would have turned out if the Supreme Court was full in 2015 when they brought DAPA/Expanded DACA for appeal. If Scalia was still alive, there is a good chance that Kennedy would have voted differently but because it was an 8 member court, he likely voted against DAPA so the court could revisit it with 9 justices. And then we all know what happened with that and 2016....
You gotta admit Dreamers have had a tough go.
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Mid-40's dreamer (yeah, time flies), aged out of original DACA and didn't have a chance to apply for extended DACA after Republicans killed it on the vine. Have family petition that is now officially current but with past skeletons, is risky to move forward with AOS. Life is on hold for now until laws and/or government becomes more friendly. Life kind of sucks at the moment but like Al Bundy and the mighty cockroach, I survive.