If you’re going to accuse your opponent of plagiarism, it might be a good idea to check first that the alleged plagiaree is not, in fact, a friend of the alleged plagiarist, one who will readily tell the paper of record that not only do the two of them routinely kick speech ideas back and forth, but that in this particular instance he encouraged his friend to adopt the approach and rhetorical device used.
Crack some windows at campaign HQ. Think about shelling out for a Vornado or two while you’re at it. (You do still have enough cash on hand for a couple of air circulators, right?) The stench of desperation has got to be giving some of your more sensitive staffers splitting headaches by now.