There was an electric atmosphere inside the Chicago convention centre for Obama. Not Barack, but Michelle. She was the warm-up for her husband but as she proved at the 2016 Democratic Convention with her famous "when they go low, we go high" speech, she is the real orator, not him.

The crowd of 20,000 hung on every one of word of her words. It was a speech of hope, of what could be under a president Kamala Harris . Not the darkness, the "smallness" as she sees it of Donald Trump .

"America, hope is making a comeback...

" she said, to roars. "Something wonderfully magical is in the air, isn't it?" she said "..

. It's the contagious power of hope!" "We have the power," she said, "to marry our hope with our actions". As it happened: Obamas speak at DNC Known normally for rising above everyday brutality of politics, tonight she addressed the threat from Mr Trump, directly.

"Kamala has shown her allegiance to this nation, not by spewing anger and bitterness, but by living a life of service and always pushing the doors of opportunity open to others, she understands that most of us will never be afforded the grace of failing forward," she said. Read more: Obama warns sequel 'usually worse' than first movie Biden denies he is angry with Democrats who tried to oust him An awkward goodbye for a president who didn't want to go She drew a constant contrast between Kamala Harris and Donald Trump. "If things don't go our way, we don't have the luxury of whining or cheating others to get furt.