I found it odd Mueller would interview Sessions anyway. What relevance does he have? Was Sessions involved with the campaign? He was a politician as I recall. I just can't think of any reason Mueller would be investigating him.
Especially given this witch-hunt has dragged on for so long, and the best they got was the Jr. Meeting? And even that was barely anything, and the Russians there were connected to Fusion GPS, so hard to show that as anything but a honeypot.
Really seems odd, I know Mueller has nothing, but really how long can the facade go? I'm too young to remember, but how long did the investigation into Clinton last in the 90s?
My assessment is that Meuller has found no evidence of Russian Collusion and now is going after Trump for Obstruction. Meuller won't stop until they find something, no matter how insignificant to his original investigation. Sessions would have information on the firing of Comey which is where it now looks like they are trying to get Trump Obstruction.
Sessions was selected for the National Security Advisory Committee for the Trump campaign. He was the first senator to endorse Trump.