My first choice for his running mate would California Representative Nanette Barragan. She's progressive, but not too far left either, latina and would be 44 years young on election day. I've seen her in some interviews and was impressed.
Stacey Abrams better runs for governor again in 2022, if Joe Biden wants a black woman, I think Atlanta Mayor Keisha Lance Bottoms is a solid pick. Not the classic vice presidential candidate, but she could bring in new perspectives. My opinion of Kamala Harris has dropped, I'm not sure she would be the best choice for him.
Gretchen Whitmer would be an excellent pick as well, even though she's just in her first term as governor.
I'd like Mayor Pete, too, but he's better for a cabinet appointment. Sally Yates should be appointed Secretary of Homeland Security. Would also make a good attorney general, but I prefer Andrew Cuomo or Doug Jones, respectively. Please not Hassan or Shaheen.
I agree with this. I know we have already said this both, but Barragan would be an excellent choice for Biden. She's young, smart, dynamic, and telegenic (which for a woman definitely helps).