Krauthammer showed what bunch of lying hypocrites all the others at the table are in reality.
It’s so rare to have a really smart person commenting on those shows that you can see how wide a berth they all give Charles. Nobody dares to challenge him because they know not only is he right, but he’s got corroborating examples at the tip of his tongue. Nina probably envisioned him raising career-ending examples of her commentary if she had in any way pushed back.