Yes , Roberts is being very “collegial” as they say. I’ll offer something in the way of a very unlikely, but possible, reason for his actions. I don’t know, but I’ve been told it is customary for presiding judges in situations like this to bend over backwards as the trial progresses in an attempt to show no preference for either side, in the off chance they might have to break a tie. And thus they try to protect their integrity from critics. Perhaps this doesn’t apply in this proceeding, but could explain his demeanor and possibly his misplaced caution in the Obamacare fiasco.
What kind of tie? This isn't passing a bill, and Roberts isn't a Senator.
-PJ