Biden's run is to have the way for Hillary to run again By asserting that he is being investigated because he is running, Biden  indoctrinates the Dem base. Moreover, when HRC runs she will assert the same along with the man. It will not work in either case but it's all they have left. In my honest opinion,Biden believed it was his time but Hillary threw him to the Lions, as she will run at any cost.  This is all desperation.