Ya, but that is part of what the primary process is for. Sort that sort of thing out. There's just no need to make a public spectacle of addressing everything they use.
That's unrealistic in the information age. You can't expect the your enemies to not pick up the mud your rivals slung at you when it shifts from "friendly competition among equals" to "open warfare between declared enemies" in a world where information doesn't go away or off the public's radar.