A decent man who overstayed his effectiveness.While noone could force him the failure of friends family and Harris/Pelosi etc to push harder allowed Trump the sad first debate which was his "Rubicon".
IMHO he could have retired honourably 18-24 .months ago to allow the Democratic party to choose from a slate of talent.They could have got Newsom etc and quashed or coerced RFK leftwards , his small band even a handful of support in swing states may make the difference between Harris with more of the same and a Trump disaster.
They may still have chosen Harris ww will never know , but his late departure may be seen a grave error especially if the rushed replacement ushers in the debauched convict.