While the interview started off in a balanced manner, it went off rails when Tapper brought up the topic of Michael Wolff's book "Fire and Fury: Inside the Trump White House", which has caused quite a bit of controversy in the recent days.
Wolff's bare-knuckle "Fire and Fury" quotes key aides and portrays the Trump White House as a fetid stew of backbiting, incompetence and dysfunction and paints Trump as craven, unstable and far out of his depth in the Oval Office.
Miller also described the former chief strategist's role was "greatly exaggerated" and twice called Trump a "political genius".
The news media, and in particular CNN, are "openly hostile" to Trump, says Houck, who likens them to "partisan hacks" seeking a chance to attack.
Twelve minutes in, Tapper could take no more, calling Miller "obsequious" for his seeming attempt to score points with President Trump.More news: 3 quakes magnitude 5 hit Iran-Iraq border area
CIA Director Mike Pompeo, a Trump appointee, calls his boss "completely fit".
"Not only do I think they help it, but I think in the toxic environment that you've created here and CNN and cable news, which is a real crisis of legitimacy for your network", Miller told Tapper.
"I'm always amazed at the lengths people will go to, to lie for money and for power".
CNN editor-at-large Chris Cillizza said the Trump administration feel unfairly targeted by the news organisation as it does not like being held accountable for baseless claims made to the public.
When the CNN host tried to end the conversation, Miller kept going: "You should be ashamed of yourself".More news: 'Bored' Russian man crashes armoured vehicle into shop
Mr Bannon is chairman of Breitbart News, and his comments caused a key Bannon backer, Rebekah Mercer, the billionaire Republican Party donor and Breitbart co-owner, to distance her family from him.
Trump himself commented on the interview Sunday morning. I was glad to have people hear what I set on camera and off camera.
Tapper finally cut Miller off, saying "I think I've wasted enough of my viewers' time".
Miller was widely panned for an early round of interviews just weeks into the administration, but Scarborough told MSNBC analyst Elise Jordan this weekend's appearance - which ended with him being reportedly escorted from CNN by security - signaled a new low.More news: Sturridge offers himself to Inter
The president also blasted Tapper as a "CNN flunky".
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