Ahead of Hillary Clinton's big DNC speech, CBS hosts offer advice

After a week of moving speeches and big-name endorsements, the Democratic National Convention’s final evening finally brings Hillary face-to-face with the country. To explain the stakes of Hillary’s big night, we asked three people with decades of conventions under their belts, CBS This Morning hosts Charlie Rose, Norah O’Donnell and Gayle King.

Rose, O’Donnell and King shared what they think Clinton needs to do to win over voters in her speech tonight. And specifically, how can she nail down the demographic of young female Democrats, who the convention has courted all week with Millennial celeb speakers like Lena Dunham and Katy Perry?

“There’s a historic element to Hillary Clinton’s candidacy. They’re looking to highlight that as a way to capture some of the magic that may have been lost from the brutal primary season,” O’Donnell said about Clinton’s goals for her speech tonight.

She pointed out that young women turning out for Sanders over Clinton was troubling to her campaign. “To some older female Democrats, there was some head-scratching about why they didn’t see this as a historic moment to help elect the first female president,” she said.

Democrats court young female voters with celebrities and song

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And while many pointed to Bill Clinton’s speech as aimed at male voters, she saw it differently.

“What was remarkable about Bill Clinton’s speech, one of the savviest political animals out there instead chose a personal, biographical look at [Hillary], talking about falling in love with her," she said. "And I wonder if that message was aimed at young women, painting this picture of her in 1971 with big blonde hair and glasses and a floral skirt.”

Clinton may have many big female names in her corner, but Charlie Rose disagreed that younger voters could be swayed by starpower alone. “In the end it’s whether they think she’s the best candidate, it’s not celebrity endorsements,” he said.

"But people want to be part of history. They believe that it's time for America to see a woman as president, and that’s a good thing for the forward march of America."

And while Gayle King agreed that "celebs add sizzle," she sees young voters as difficult to be marketed to. "They're thinking for themselves and voting for who they think is right."

"Younger people resent when you say, 'You're going to vote for her because you're a girl and she's a girl, we're thinking much broader than that."

O'Donnell defended the convention's use of starpower to attract eyeballs, explaining that politicians team up with celebrities to access a direct channel to their fans, leaving media middlemen behind.

"I've seen how campaigns communicate differently and how people consume the news differently, going from traditional media sources of broadcast networks and newspapers to a younger generation that consumes news through social media," she said.

"And what the Clinton campaign is trying to do is use celebs to communicate through those media where they have huge platforms, using those surrogates to reach audiences who aren't following traditional media sources."

So whether younger voters are watching her speech on TV or watching it via their Twitter feeds, Clinton just wants them to listen.

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Read more about how the Democratic Convention is attempting to attract younger female voters here.