Because they’re subpoenaing officials for no good reason. Clearly there was no basis for the US Attorney to have a conversation with Bart Graham. No reason at all.
Via the AJC:
A federal investigation into a meeting at the Georgia Capitol last year involving Nathan Deal, then a member of Congress, has not targeted Deal, his chief of staff or his Gainesville business partner, Deal said Wednesday….
“Neither Nathan, nor anyone who worked for him, nor Ken Cronan, is under federal subpoena,” said spokesman Brian Robinson. “After we found out about this, we talked to the U.S. attorney’s office and they have assured us that Nathan nor anyone else is the target or the subject of a federal investigation. The timing of this is suspicious, but Nathan is not the subject or the target of a federal investigation.”