Ted Cruz said he refused to endorse Donald Trump because of two things. First, Trump’s comment about Heidi Cruz, and second, Trump’s citing of an alleged connection between Cruz’s father and Lee Harvey Oswald. In a press conference this morning, Trump tried to set the record straight:

I’ve always said, ‘Why didn’t the National Enquirer get the Pulitzer prize for Edwards, and OJ Simpson, and all of these things?’
But anyway, so they have an old picture of [Rafael Cruz] having breakfast with Lee Harvey Oswald. Now, I’m not saying anything. And here’s how the press takes that story. This had nothing to do with me, except I might have pointed it out. I have no control over anything.
But did anybody ever deny that it was the father? They’re not saying, Oh, that wasn’t really my father. That’s a little hard to do — because it looks like him.
So the press takes that, and they say: ‘Donald Trump and his conspiracy theories; he went out and said [Cruz’s] father was with Lee Harvey Oswald, and he assassinated the President.’ What did I do?
Two things. Number one, the Heidi thing you understand now. Number two, I know nothing about his father or Lee Harvey Oswald. But there was a picture on the front page of the National Enquirer, which does have credibility — and they get sued for a lot of money if things are wrong — and there was a picture. And that’s the only thing I know. So now they use the two things as the reason [Cruz] won’t support.