Walz was great. They put him on a leash, though. Remember when he was going around calling the Republicans "weird" and they were freaking out about it?
(Edit: They're STILL not over this btw, Benny-boy "dry wife" Shapiro made a tweet after the election that went something like "We proved we're the normal ones after all".)
When it comes down to it, when they're forced to take a side, the centrists will always side with the fascists over the Left. We've seen that happen consistently.