In Blago’s case, Obama looks squarely in the middle of it. Obama is a material witness. Blago has the right to confront the witness, Obama, against him per the 6th Amendment Confrontational Clause. Written statements by Obama or some teleprompted tv show will not do or satisfy Blago’s 6th Amendment rights since that’s not good enough to cross the witness in court.
This particular situation seemns substantially more promising than the Lakin fiasco.