See the Behind-the-Scenes Moment Before Hillary Clinton Gave Her Speech in Brooklyn

— -- When Hillary Clinton arrived Tuesday night at the Brooklyn Navy Yard's Duggal Greenhouse after clinching the Democratic nomination, her first glimpse of the celebratory crowd gave the former first lady chills.

“Oh my gosh, look at this,” Clinton told ABC’s David Muir before their interview in a room perched above her screaming and dancing supporters.

“So this is eight years ago to the day that you conceded and tonight you will go out there for a very different reason,” said Muir.

“That’s right, that’s right. It’s almost hard to take in, it really is,” she answered.

Before Clinton stepped on that stage to deliver her first speech as the nominee, Muir asked her whether the history of the moment was sinking in.

“This is sinking it in, I can tell you that," she said, gesturing to the crowd. "It’s an overwhelming feeling David, really!”

The Duggal Greenhouse crowd of over 1,000 couldn’t see Clinton, who, moments before, was still editing her speech.

“In many ways, a hard speech to give because it is so emotional and all of these people who have worked so hard across our country who believe in a kind of future we want and I’m trying to capture that without just completely you know, getting overwhelmed by the emotion of it,” Clinton told Muir.

The former secretary of state said she couldn’t have imagined this moment eight years ago and looking out at that crowd and thinking of all the volunteers who helped her get here gave her energy.

“It has been a long time coming and we really stand on the shoulders of so many women and men,” she said.