Any complaints about Harris being “too ambitious” need to not be given any credit within Biden’s camp or outside of it - that’s a bullshit reason to disqualify her. Her past as an attorney general might give some pause, though, in terms of trying to best harness rage at the injustice of the system right now.
Duckworth, I’ll be honest, feels like the only reason I would doubt her would be if she herself doesn’t feel up to that role just yet, or if their strategists dig up something about her that is damaging. Considering her personal courage and trailblazing nature as the wounded decorated vet not afraid to be a political leader and a mom at the same time... she could be a heavy hitter.