Everyone started out quite aggressive tonight, but my impression is that they sort of ran out of steam about halfway through. Bloomberg is definitely most improved, though he'd set himself a pretty low bar for that last time. I agree that Biden was pretty good; he had a few weird moments (cutting himself off -- again -- and the hair joke), but that hasn't seemed to hurt him in past debates. Warren, Buttigieg, Klobuchar and Sanders seemed consistent, though Sanders took more incoming heat than in previous rounds. Steyer didn't do a great job of inserting himself, speaking a lot less than any of the other candidates.