I have no objection to Bannon or anyone else criticizing Trump when he backtracks on campaign promises or when he takes the political side of the GOP establishment (or liberal family members) against the constituency who got him elected. However, using the same talking points as the liberal media (on Russia collusion) isn't the right way to go about it.
Does anyone think this stuff doesn’t happen in every administration?
The difference is, with Trump, the press is eager to jump on any little thing to try to paint him in a bad light.