All four candidates full throttle today. The president came out swinging. The vice president caused a dustup. It's "your voice your vote" and abc's david muir reports in from the battleground state of... See More
All four candidates full throttle today. The president came out swinging. The vice president caused a dustup. It's "your voice your vote" and abc's david muir reports in from the battleground state of ohio tonight. David. Reporter: That's right, diane, we're in ohio where mitt romney will speak a short time from now. Mitt romney, his new running mate, paul ryan out on the trail today. The president and vice president, joe biden out, too. And what they said, some argued, turned personal today. The boards on the debate over how to produce energy and jobs, mitt romney in coal company taking on the president. I see how he's been waging war on coal. Reporter: President obama on wind power, blasting romney, today going there for the first time. Talking about that story that's followed mitt romney where he strapped the dog to the roof of the car while driving the family on vacation. That's what he said about the car. You can't drive a car with a windmill on it. I don't know if he's tried that. I know he's had other things on his car. Reporter: The president in fact bringing up the story of the dog later today and while romney's number two took on the president in ohio, it was what vice president joe biden said in danville, virginia, that the romney campaign quickly argued was a new low --ese going to let the big bang once again write the rules. Unchain wall street. They're going to put y'all back in chains. Reporter: They say unartfully phrased, they've used a similar metaphor, unshackle, as their every word is now dissected, we've now learned a republican who doesn't mince words will introduce mitt romney at the convention. The coveted woe going to new jersey governor chris christie. Which christie will we see? The bold -- stop railroading, mr. President. Reporter: Or the bombastic. Your railroad is going to get thrown in jail. Reporter: I want to give you an idea of the crowd gathered here over my shoulder. The crowds have begun to swell, particularly over the announcement of the new running mate on the republican side and the democratic side, the president and vice president showing a divided electorate getting engaging on this race. Thanks so much, david. And an issue everyone is talking about tonight is medicare, and
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