If Graham is DS, it makes perfect sense. If they can control the Senate intelligence committee, then they can effectively stall any progress in terms of public disclosure. All he has to do is beat his chest, talk tough, and then very carefully do absolutely nothing. In the end, when Trump is defeated, he goes back to his constituency and says he did all he could to help Trump, but his DS masters know where his true loyalties lie and will reward him for his efforts.
IF…he is DS, that is.