If trump was going to smear Biden it makes sense he waits till he’s the official candidate.
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I don’t see the need to smear Biden. Biden’s endless gaffes are already accumulating into a mountain of damaging campaign ads against him. And his fitness for office (i.e., his declining mental acuity) is already under scrutiny, even in his own party. Biden is already on the road to elimination so why go to such lengths to smear him? Doesn’t make any sense.
Cui bono? There are democrat stay-behinds all over the permanent government. Somebody is forcing DJT’s hand so that he will retaliate (predictably) and take out Biden for them. Joe has to go. Everybody knows it. Sanders and Warren don’t want the blood for Biden’s political demise on their hands. And the little-guys are playing for a VP slot, so they can’t do Biden either. So...