I wondered about this on the afternoon of the decision. It stands to reason: If, as most everyone believes, Roberts initially assigned the majority opinion to himself and then ended up flipping at the eleventh hour, the four conservative dissenters would have had to scramble to come up with an opinion of their own while handling the rest of their caseload. (Roberts authored no other opinions over the final two months of the term so he and his clerks could conceivably have drafted something new from scratch late in the process.) The easiest way to do that would be to...
