I guess I'm a little surprised by the possible Harris pick because she was going after Biden during the debates. But I guess maybe Democrats can put that behind them. Personally speaking I didn't come away from the debates impressed by Harris but maybe she does make sense as a more behind the scenes #2.
I mention Haley because, as someone with left leaning persuasions, she seems like an "obvious" choice for Republicans. She's a well liked female and could bleed off some of the suburban white vote that propelled the Dems forward in 2018 (and 2020). So that scares me a bit. I guess I'm skeptical that Trump will have long lasting influence if he loses in 2020 for a Republican party that, in theory, would actually like to be widely electable in the future.
I view the country's inability to tamp down COVID-19 on the asinine politicization of the disease by the Trump administration. Having said that, as others have said, the important thing is more the hospitalizations and deaths. Those are the trends that concern me. Positive cases might be leading indicator but the amount of testing being done (or not being done) plays way too much of a factor.
Nikki Haley is a woman, and isn't white. At best, she takes up the Republican party's token woman and token PoC slots in the primary to make the party seem like they're not just for white guys.