I am about as fed up with Biden as I have ever been. That said, if he wins the nomination, I will vote for him. His latest statement about putting a Republican on the ticket was the final straw. There is no Republican on planet earth that would be acceptable for me under any circumstances. As a group they are soulless cowards, and their commitment to keeping women pregnant at all costs is in every Republican's DNA. No. No, No, Never, ever.
I will just mention it in passing, Bernie could not win even if he managed to get the nomination. He is too far left on pretty much everything and has little down ballot support in either part of Congress to implement plan one. Warren seems to be flailing and losing support. While I am not definitively ruling out anyone other than Bernie and Tulsi I am hoping a moderate does well in Iowa and starts picking up steam as the voters sharpen their focus. Amy and Pete loom as interesting choices, but as has been noted it is still early. At this point in his election Kerry was at 4%.