>> he was with lee harvey oswald prior to him being shot. the whole thing is ridiculous and nobody even brings it up. they don't even talk about that. that was report and nobody talks about it, but i think it's horrible. >> what? it's true. no one talks about that. here's how ted cruise responded to that. >> donald trump alleges that my dad was involved in assassinating jfk. now, let's be clear. this is nuts. donald's source for this is the "national enquirer." the "national enquirer" is tabloid trash, but it's run by his good friend, david pecker, the ceo who endorsed donald trump. so the "national enquirer" is his hit piece. i will tell you what i think of donald trump. this man is a pathological liar. >> even at the convention, cruz couldn't bring himself to openly