Peter Hart, who's a pollster that's - who's done many focus groups about Hillary Clinton, talks about a glass curtain. She talks about the glass ceiling. He says voters feel there's a glass curtain between themselves and Hillary Clinton. They can't relate to her. They feel they don't really understand her, and that's made it easier for her opponents, of which there have been many over many years, to define her the way they want to.

The difference in the way Hillary Clinton and Donald Trump talk about the middle class is stark. For Clinton, it's a story of hope. For Trump, it is a story of loss.

She [Hillary Clinton] says I know that this is the first time that one of our two major parties has ever nominated a woman, and that takes some getting used to even for me. And I think that she has to somehow figure out a way to talk about it. She doesn't like being a symbol, but in many ways, that's what tonight is about.

Kathy Burgess describes [Hillary] Clinton as fun and an all-around great person but admits it doesn't come through well.

Judy Price Osgood is a longtime friend of Clinton's, and she says she meets people regularly who say they don't like [Hillary] Clinton.

I don't think that [Hillary Clinton] can turn around her honesty and trustworthiness problems with one speech, but she could present herself tonight as more relatable, give people a glimpse of that warm, funny woman the people who meet her in small groups and one-on-one say that she is.

Trump has a pretty remarkable ability, going back to when he was in business, to reframe defeats as wins. So he had four business bankruptcies and he found a way to say that those are actually wins for him.