Bannon has made some terribly accusatory statements of Russia interactions with members of the Trump administration.
At one point, however, he called the Russia thing ridiculous, that collusion never happened. So, which Bannon will show up???
Who can bet what Bannon will say next, or to whom he will say it. At best, Bannon has proven to be unreliable.
Depends how Drunk Bannon is.
One never knows with Bannon. His testimony is not a good thing.
The Mueller Squad will find him so as a witness.