Donald Trump Launches Personal Attack on Hillary Clinton

Trump told supporters in Pennsylvania that Clinton "could actually be crazy" and attacked her marriage to Bill Clinton.
2:27 | 10/03/16

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Transcript for Donald Trump Launches Personal Attack on Hillary Clinton
which were tigers in bed. The trump team denies these accusations. Cecilia Vega on the trail with Clint fern the start. Reporter: George, good morning to you. Clinton has said she won't engage Donald Trump in his personal attacks. He's going after her health and her marriage. It may be a preview of what is to come in the next debate. Donald Trump's newest attack? A dramatic reenactment of Hillary Clinton's near collapse when she was sick with pneumonia. Here's a woman, she's supposed to fight all of these things, she can't make it 15 feet to her car. Give me a break. Reporter: He's going after her mental health, too. She could be crazy. Reporter: During a weekend rally in the battleground of Pennsylvania. Trump going after Clinton's marriage, this time, not targeting her husband's infidelities, but rather, without proof, hers. I don't even think she's loyal to bill, you want to know the truth. And really, folks, really, why should she be, right? Reporter: No comment from Clinton during her Sunday visit to a church in North Carolina. Her campaign calling trump's latest attacks particularly unhinged. Could bit a trial run of what's to come during their next debate? The republican nominee hinting that things could get more personal. The last head to head, now fodder for the opening night of the new season of "Snl." He is a bully. Shut up. He started the birther movement. You did. He says climate change is a hoax invented by China. It's pronounced China. He hasn't released his tax returns which means he's either not that rich. Wrong. Not that charitable? Wrong. Or never paid taxes in his life. Warmer. Reporter: On the plane, Clinton laughing about it with staff. Told about this opening scene. I'm better than ever, let's do this. Reporter: Clinton saying, oh, that's good. This morning, a big endorsement from Lebron James, the Ohio native writing we need a president who brings us together and keeps us unifizzed. Clinton campaigns in his hometown of Akron later today. Clinton hoping his endorsement pays off big. Let's bring in Matt dowd and Jon Karl.

This transcript has been automatically generated and may not be 100% accurate.

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