@Thinkerbell Well it was his former President, a one Barak Hussein Obama II who said “don’t underestimate Joe’s ability to fuck things up”. That does not reflect in a good way on Joe.
Obama needed someone from the (relative) right wing of the Democrat establishment to balance out the ticket. Relations with the Clintons were not good at the time, and so Obama went with Biden, who had always made a career of going with the political flow.
