|IMO, the Dems have thrown in the towel on Biden and will keep him for down ballot voting. They want the Senate more than the White House. With the Senate, they stop Trump, and they stop all further Supreme Court justices and stop all federal court nominees. They will also impeach Trump again and stymie him at each and every turn. They will likely get their infrastructure spending too.|
Most importantly, they stop this current investigation that will will expose their messiah, Obama. This can't be finished by November, so winning the Senate at all costs is primary. The White House is secondary.
Biden is a smokescreen. Nobody expects him to win just like nobody expected McCain or Bob Dole to win.