[laplata]

Right on.

I think Mueller is bluffing and grasping at straws at the same time.

[meatloaf]

Mueller is desperate. He needs to keep the balls in the air. Unfortunately, he has no balls.

[grumpygresh]

I think that Mueller is calculating that Trump will ignore the subpoena. That will give Mueller the rationale to continue the witch hunt until the SC decides on whether the subpoena is constitutional.

Now, if Trump does answer questions, he of course will be subjected to a perjury trap and additional evidence will be generated for fodder in an impeachment proceeding.

I agree with Levin who argues that Trump should demand why Mueller is violating the DOJs rules with respect obtaining a subpoena from the President and force them to make the case why issuing a subpoena to the President is constitutional.