although here's an alternate view: https://althouse.blogspot.com/2019/02/in-politics-calls-for-civility-are.html
Yes, there is certainly an element of this, I don't disagree. And Pelosi knows the camera is always on her, right behind Trump. But the others should adopt that same mindset. Cameras were panning everywhere...in this day and age, one should always assume the camera is on them.