Graham has a history of putting himself in the flash bulbs of a serious issue, only to tuck and run when push comes to shove.
if you get to the bottom of it, the question is “then what?” Do you honestly think the Senate or House will do a blasted thing about it? This is the party of Stupid we’re talking about. If they didn’t have the guts to out the issue during the campaign when it meant something, I have very little hope they’ll do anything with it except pen a strongly worded letter that will just go to File 13.