Obama was doing the blackmail.
Really?
Whatever Obama (or his minions) had on Roberts is still out there to be used again ... and again.
And, no doubt, they WILL use it!
It was about the way Roberts adopted his kids, who are now at least in High School.
The appointment to the high court is for life and any attempts to make an obscure adoption process an impeachable offense at this point, is unlikely to gain any traction.