...a top aide to the former California senator’s 2020 campaign said: “This person should not be president of the United States.”
Cool story, bro. You don't get to tell me what to think.
I get that there's some value in listening to the opinions of people who were close to her, but this is still just one opinion from one person. I don't particularly care about her being President, but I think she'd be orders of magnitude better than the entire Republican lineup.
Now there's some people who should never be President of the US, and you don't have to be a "top aid" to grasp that.