Of that judge -- district judge of that court. he can give that to the president at any time and force the president to testify. now, will they fight over the day? >> quick final question -- >> go ahead. >> quick final question, you think he has that subpoena in his possession already? >> it's a very simple document. all it requires is his signature and then duly serving it on the president. then you get into a legal fight over when and where but that's his ultimate trump card. >> no pun intended. nelson cunningham, thank you for being here. >> thank you very much. next week, my seventh book...