The latest of the American president's key speeches endorsing party presidential nominee Hillary Clinton had applause erupting after almost every pause he took at a sports arena here that had barely a seat empty, in a reminder why he beat her in 2008.
"So 12 years ago tonight I addressed this convention for the very first time," he said, adding how Americans were also introduced to his daughters Malia and Sasha who are "now two amazing young women" and wife Michelle who "somehow hasn't aged a day".
Obama's speeches are known for their vignettes of intimately personal narratives and sweeping visions of America, and his fiery 45-minute speech today, seen by many as a valedictory coda to his 2004 debut, was nothing short of it.
It was a result of six drafts and a few late nights, according to White House officials, who added that the president had begun working on it in June and the first draft was ready on July 18.
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In his speech, Obama touched upon the developments that America has seen over the years under his presidency and staying "great" all the while and set a tone of tolerance, diversity as he lashed out at Trump for a divisive rhetoric.
Making the case for his successor, who has already created history by becoming the first woman nominee of a major US party, Obama warned of the threat that Trump poses to the 240-year-old fabric of American democracy.
The first black president in American history reminded his countrymen why he is a once-in-a-generation figure and could beat Clinton again today. "But now his last, greatest gift was to pass on the torch," The Guardian commented.
"It (His speech) was an elegiac piece of political theatre that contrasted with last week's Republican convention in which a bellicose Trump, ranting in front of his own giant image, bordered on fascist satire," it said.
"I started the evening saying for the first time I thought Trump could win. Then Obama spoke. I'm so angry at my own party right now," Erick Erickson said in a post.
Michelle tweeted after the speech: That's my man! Your truth, dignity and grace reminds us what real leadership looks like. I am always proud of our @POTUS.