Here's a quick post about something I think a lot of people get wrong about Vice President Kamala Harris's 2020 campaign for the Democratic nomination.
Folks like Nate Silver look at how she dropped out fairly early during the 2020 cycle and sight that as iron clad proof that "she's bad at politics", but a presidential nomination isn't like being on Survivor where the longer you last the better you've done at all.
Instead it's more like a poker game at a tournament where there are some high risk/high reward strategies that maximize your chance to win but mean you could go bust quickly, and some strategies (like how I play poker, you just never bet) that maximize the time you stay in but make it really, really unlikely you'll win the table/tournament.
To review, after Harris's big break out debate moment where she knocked Biden she got a ton of free media coverage and her fundraising surged. Hoping to maximize her advantages of this major break she went with a high risk/high reward strategy of staffing up nationally in order to maximize her chances of winning if she caught fire and she pulled an upset in an early state and/or had to hang in for a long drawn out battle. Unfortunately for her the debate moment turned out to be a one off moment, not a major breakthrough with the public or donors and so the money ran out fairly quickly (a national campaign staff leads to quite the "burn rate" for a campaign) and so she had to drop out.
Meanwhile a candidate like Amy Klobuchar went with the low risk strategy of conserving her money for the long run and so she was able to stay in much longer. Under the "Survivor Model" this means she ran a better campaign, but in reality Klobuchar had little campaign infrastructure (even in her own state) to be able to take advantage of a break through if she got lucky and one occurred.
In other words her strategy kept her in race for a while, but she was never a major threat to Biden once the field narrowed, hence why she quickly dropped out and endorsed him. Meanwhile Harris going "all in on" that early great hand didn't work out, but it was still a smart move if she wanted to actually win the big enchilada and not just stick around in the game for as long as possible
You can see other good examples of how the "Survivor Model" doesn't hold up in past races as well. Under this theory in 1988 Jesse Jackson ran a great campaign and thus he was a very skilled politician, after all he took it all the way to the convention, the last Tribal Council! Likewise Jerry Brown in 1992 held out the longest against Bill Clinton, and thus ran a great campaign as well. But in reality The Duke's real threats in 1988 were people who dropped out early due to scandals like Gary Hart and Joe Biden not a factional candidate like Jackson, who never appealed much to the party other that his coalition of some white liberals and black voters. Likewise the candidates who had a chance to actually beat Bill Clinton in 1992 were probably guys like Mario Cuomo (who dropped out before New Hampshire), Tom Harkin, and Bob Kerrey not a candidate like Brown who appealed largely to just his own personality based faction and people who hated The Big Dog, or Paul Tsongas who was pretty out of step with the mainstream of his party on a number of issues.