As for her running mate, top contenders would likely be Cory Booker, Julian Castro, Andrew Yang, and Andrew Gillum.
Warren vs. Pence.
Warren would probably be the hugest force in the Democratic primary, & I can't imagine who'd be able to successfully run against her. Bernie won't run so she'll probably inherit the progressive wing from him, in addition to a good chunk of moderates as well, given the make-up of her voter base this year. Harris would surely run again, but in addition to probably being tainted by the 2020 ticket's loss, she may not be as well-liked &/or seen as charismatic by as much of the party's base as Warren is. Yang would probably run again, & Governors like Cuomo, Newsom, &/or Inslee would probably all run too, but who knows how popular they'd be? Not to mention, with a 2nd Trump term, the party will have likely moved even further left by 2024.
As for the GOP, they nominate Pence as a sacrificial lamb (because there's no way the GOP wins a 3rd term after 8 years of Trump), & most other significant potential candidates would wait for 2028.
