“He will speak Tuesday as someone who also once was a turn-the-page candidate, just as the party is showing signs of renewed energy behind Kamala Harris,” Mr. Axelrod said. “It’s a very different scenario.”
Mr. Obama’s line that evening, that “there is not a liberal America and a conservative America — there is the United States of America,” promised a vision of national unity at a time that the seams were just being stretched. “There is not a Black America and a white America and Latino America and Asian America,” he added. “There’s the United States of America.”
Former aides to Mr. Obama say he is bound to return to that theme on Tuesday night, as he makes the case for not fueling the societal divisions Mr. Trump has at once benefited from and fed.