I think the challenge for the lower-level candidates in this debate is that it's unclear if there's any room for another major candidate. So even if Delaney has had a good night, I seriously doubt he's about to jump to 10 percent or something. Really, the three candidates on stage tonight who had a chance to make progress into a higher tier were Buttigieg, O'Rourke and Klobuchar. I don't really think they've done that. Bullock is a bit of a wild card, though, because we haven't seen him -- and neither have most Democrats.