Well, no. It's a test. If the guy proves himself, he'll have support. If he doesn't they'll pick somebody else.
Will the DNC throw everything they have behind Kamala Harris?
Why? She's a demonstrably weaker candidate than Biden or Sanders. She's not experienced. She's not prepared. She's not likable. I don't see Blacks or women singing her praises or lining up to endorse her. Even rich California donors aren't in her pocket.
Candidates are circulating a lot of stuff against each other, but if there are over 20 candidates and you are some kind of power broker, you probably don't want to show your hand just yet. You want to see who will screw up.
This is where we disagree. You seem to think that primaries are decided from the bottom up. I'm convinced that in most cases they're decided from the top down: i.e. the DNC and RNC anoint a candidate of choice and perhaps an acceptable pinch hitter, and then pull all the stops to make sure those candidates win - money, press coverage, ads etc. Most of the time it works - Hillary was the nominee in 2016, as expected. The same with Dole in 1996, Gore and Bush in 2000, McCain in 2008, Romney in 2012, etc. Trump pushing aside Jeb (and pinch-hitter Rubio) was practically a one-time anomaly.
Why? [Harris is] a demonstrably weaker candidate than Biden or Sanders. She's not experienced. She's not prepared. She's not likable. I don't see Blacks or women singing her praises or lining up to endorse her. Even rich California donors aren't in her pocket
The current pool of candidates creates a real problem for Democrats. They don't want Bernie or Warren because their economic policies will alienate big donors from Wall Street and Silicon Valley. At the same time, Sanders is an old white male who isn't "woke" enough for the activist base. This leaves them with weak candidates like Harris, along with even weaker flavors of the month like O'Rourke and Buttigieg. This is why I think that they're either in a complete panic now, or working behind the scenes on an 11th hour anointed candidate that fills in all of the right blanks.