The Behavior: Emotional Fluctuation
On April 10, 2018, veteran reporter April Ryan asks Sanders whether Trump has thought about stepping down, especially in light of the turmoil of the Russia investigation. (The question begins at 9:28 in this video.) Sanders answers, "Uh, no, and I think that's an absolutely ridiculous question," and immediately calls on someone else while Ryan continues. "I gave you two questions, April, we're moving on."
Immediately after Ryan's question, Sanders shows "substantial emotional fluctuation," from contempt to high anxiety-fear-regret, back to contempt, and then back to anxiety, said Brown. This is a textbook example of emotional dissonance, or having trouble aligning one's true thoughts and feelings with one's words.
"It shows that she might have resentment for a particular individual" — perhaps the president, or the chief of staff, or whoever gave her marching orders that day — "or it could be just for her job," Brown told Refinery29. "Thinking, maybe, 'I can't believe I have to lie my butt off.'"