Such an unwise move.
These are the sorts of manouevers which end in violence down the road.
What will happen? Crisis of legitimacy as judges offer only partisan interpretations of the constitution and the law.
People will remember that McConnell stacked the deck by cheating: first on the Supreme Court; now with the lower courts.
What happens when judges restrain democracy? Nothing good.
Same sorts of things in UK, with members of parliament discarding the referendum and their manifestos. Makes people very angry.