If they filed the legal challenge, why do they need to address the court?
Either the filed argument stands or not. NOT!
I know people get to augment, but that annoys me in this case.
It's the oral argument phase. Standard.
It will be 80 minutes. 40 minutes for Trump’s team, 40 minutes for the other side — now split into 30 minutes for the lawyer for the Colorado voters who filed the ballot challenge, and 10 minutes for this twit, Jena Griswold (Colorado Secretary of State).
She is big-footing the case, taking 10 minutes away from her side.
You are right, the justices have read and analyzed all the briefs and are completely familiar with the argument of both sides. However, oral argument consists mostly of questions from the court to the litigants. You never get more than a few words out before you are interrupted by a question. They come rapid-fire, one after the other. That’s really how you prepare best for oral argument, by anticipating the off-angle questions the court might ask and, preparing good answers that will lead back to your argument.