Article from USA Today via Yahoo: Summary the DNC and Kamala lost because they had no plan and the only rhetoric they had was "Trump Bad".
Summary:
"Nothing comes to mind that she would change" as stated on the View (Concerning Biden's term)
Underperformed with Black, Latino, POC, and young Voters
Focused on Trump too much while not having a plan of her own
Abortion issue, wasn't THE issue
Harris had no history and unproven commodity while the people focused on Trump and yes, his previous term as President and his strong policies on the economy.
Harris struggled to separate herself from Biden and underperformed among Black and Latino voters, dooming her chances to beat Trump.
www.yahoo.com