It all comes down to Comey. Bannon wanted Trump to keep Comey on as the FBI Director, and Kushner advised Trump to fire the swamp snake. Trump’s thinking aligned with Kushner’s, and Bannon’s been on a butthurt tear ever since.
I never understood that-—Bannon saying that firing Comey was a mistake.(Unless he knew what Sessions/rosenstein/mueller had planned) Comey should have been fired day one along with 1000’s of other O’muslim loyalists.
Keeping Comey would have been an immense mistake. He was burying all the evidence and supporting the plotters. Since he went, truth is coming out, ever so slowly. If Bannon's still upset about that, after all that's come out, then he's a self important and thin skinned fool that needed to go too.