Knowing your place
Ellison is one of many new kids on the block this term. An adult will speak little and listen much in any new situation. Adults understand that the world isn't hanging on their every word yet are extra careful with what they do say.
The late Senator Paul Wellstone learned this lesson the hard way, labeled a "chicken [bleep]" by the President. To his credit, Wellstone did not repeat this mistake.
By comparison, Ellison is a boor, fancying himself significant with just a few months of experience, and showing no real remorse. To use his own metaphor, Ellison is like Mussolini invading France.