Booker once had his own presidential ambitions
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In 2020, the New Jersey senator mounted a campaign for the Democratic nomination after decades on the rise within the party.
The theme of his campaign was unity and love. His optimistic messaging was on display again tonight as he spoke.
"We're not going to lose our faith," he said. "Look, I want everybody in here to let us all say it together: I believe in America."
The crowd repeated the phrase back to him.