As I said in another post, I believe Justice Roberts is trying to haul the reins back from the stampeding conservafascists. Not that his own tendencies don't lie that way, but he's widely reported as caring about his legacy, and right now the reputation of SCOTUS for corruption and poor decisions seems to me to be at an all time high. (That is to say, I'm not a deep SCOTUS scholar, just an observer -- there might be a time when the organization was worse.)