Transcript for Ben Carson Moves Into Virtual Tie With Donald Trump in GOP Race
to the other major headlines tonight. A reality check for Donald Trump, now sharing the top spot tonight. New Numbers showing his big lead gone, now in dead heat with Dr. Ben Carson. And a reality check for Hillary Clinton now. The democratic side tightening significantly tonight. And Tom llamas on the campaign trail. Reporter: I'm leading every poll nationwide. Right. And I'm leading every state. Reporter: For months, that was true. But tonight, the new poll showing the outspoken billionaire neck and neck with the low-key former surgeon. I think it says a lot for the American people. It means that they're not necessarily listening to the pundits but thinking for themselves. Reporter: Battling it out for third place, Marco Rubio and Carly fiorina. Fiorina facing new scrutiny over her CEO job at Hewlett Packard. I was recruited to save the company, and we did that. Reporter: Today, trump is not the only front-runner slipping. Hillary Clinton leading Bernie sanders by just seven points. A huge drop from July. Now, Clinton acknowledging the controversy over her e-mails has taken a toll. It's a drip, drip, drip. And as I said, there's only so much I can control. But what I've tried to do is provide more transparency and more information than anybody that I'm aware of that's ever served in the government. Reporter: Tomorrow, Donald Trump will introduce his tax plan, saying it will benefit the middle class and also the corporations that keep jobs in
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