Actually, Trump should say his criticisms of Jeb are just acts of love.
Trump out to make a list, and work it into a speech, of some of the most egregious “acts of love” which have been perpetrated by illegal aliens upon American citizens, and wait for Yeb to refute it. All Yeb can say is “citizens do it too”, to which Trump can say “So we need to exacerbate the problem by allowing in criminals who can’t even be held accountable because they broke the law just to be here? And who plead ‘no hablo inglese’ if they are by some miracle found and arrested, given a slap on the wrist and released to go commit even worse crimes, now that they know how easy it is to get away with it?”
Trump ought also to highlight the diseases they’re bringing in (which I personally find extremely scary and worrisome) and for which they’re not even vetted because they sneak into the US.