Roberts may be setting himself up for recusal, thus leading to a 4-4 tie and thus leaving a 9th circuit ruling to stand
That's a Machiavellian thought!
Blowing smoke about the objectivity of all judges isn't taking a position on the specific issue of immigration, though. But, I'll keep your thought in mind... if it turns out to be true, it will be both brilliant and depressing.
Unless RBG remains out of commission.
If Roberts recuses based on his own actions impeachment should be immediate.