Why do Atlas Dems keep talking about Kamala Harris as a potential candidate?

[Since I'm the mad scientist proclaimed by myself]

She was AG and had a progresssive record, so she should be able to get both wings of the Democratic party aboard if she chooses a VP from the Sanders wing, like Sherrod Brown. Also, she could remind people of Obama.

Harris is pretty close to the Sanders wing...

That's true, but I think she's not really percieved as a part of that wing. In any case, an establishment-wing VP would be pretty useless because she would be enough to turn out these voters. A Sanders-wing VP would consolidate his voters and appeal to all working class voters (regardless of ethnicity).

Picking someone like Brown sounds like a good way to turn off swing voters like me.

You aren't the kind of voter that decides elections.