I’m personally a little nervous about Harris–I remember the 2020 primary where her only notable accomplishments were accusing Biden of being racist over opposition to federal busing policies, and then flaming out shortly after and shuttering her campaign two months before the first caucus and polling single digits in California. Admittedly, she doesn’t have the same headwinds now that she had in 2020–she doesn’t have to differentiate herself from over a dozen other candidates and she won’t struggle to raise money–but she also made some unforced errors (e.g. coming out for total elimination of private insurance before revealing a plan that included private plans, or admitting her own policy on busing was essentially identical to Biden’s).
Hopefully, she’ll run a much tighter campaign now since she’ll inherit Biden’s staff and can focus solely on attacking Trump, but I do have some concerns.