1. Klobuchar was never Biden's first choice. Biden never had a "first choice''. He is famously indecisive. Biden did really like Whitmer, I suspect she was his first choice. But most of the selection process was after George Floyd. Harris was the natural option. But Jill absoletly did not want her.
I like Jill Biden but I find her stance more than a little hypocritical considering the fact that uncle Joe hit Obama pretty hard in the 2008 primary debates.
Maybe Jill Biden wasn’t motivated by a grudge over the primaries?