Dogs reflect their owners. I have always had rescues. Even the mean and skittish ones would turn in to the great friendly dogs when they were trained properly and given a good home. Biden is a mean nasty SOB who has an explosive temper and his dog picks up on it.
He is a nasty SOB-you are right-this is also the 2nd dog of FJB’s that is a biter-the 1st one was given to friends in Delaware-one biting dog might be a dog issue, but not 2 of them biting-that is clearly an owner issue-dog is not to blame. I’ll bet if this dog is given to a loving owner who is used to large working/guarding breed dogs he will never have a behavior problem again...