Biden had a good debate. Like an actual good debate, not just a relatively OK one compared to his many mediocre showings this cycle. He came into tonight needing a good performance that could produce positive headlines, and he might have done that. Thing is, I wonder if Warren's strong showing will get the "comeback" treatment more so than Biden's. She was involved in a number of potentially viral moments, going after Bloomberg as well as other candidates, that might have resonated more. So Biden probably did what he needed to, and now it's just a question of how things are portrayed going forward.