Obama has turned to talking about his mother-in-law, Marian Robinson, who recently passed away.

He says she was "funny and wise" and reminded him of his own grandmother, who helped raise him - though on the surface, the two women had very little in common.

"They both represented an entire generation of working people who... helped build this country."

He also compares those two women to Harris's and Walz's parents, and says many Americans know people like that, who care about "things like honesty, and integrity, kindness and hard work".

Despite the chaos of the world right now, Obama says that there is "good news" in America.

"The vast majority of us don't want to live in a country that's bitter and divided," he adds. "We want something better. We want to be better."

"And the joy and the excitement that we're seeing around this campaign tells us we're not alone."

Obama says that "rest of the world is watching" what happens in November's election.

"No nation, no society, has ever tried to build a democracy as big and diverse as ours before - one where our allegiances and our community are defined not by race or blood, but by a common creed," he says.

Obama says that while the US cannot be "the world's policemen" or "eradicate every cruelty and injustice", America "must be a force for good".

"That's what Kamala Harris believes - and so do most Americans."

Image source, Reuters

A few moments ago, Obama led the crowd in a chant of "Yes she can," an echo of his slogan "Yes we can".

Obama returns to another one of his classic political speech themes in saying Harris and Walz believe in an America "where 'We The People' includes everyone."

"And despite what our politics might suggest, I think most Americans understand that.

"That sense of mutual respect has to be part of our message."

Obama says that Trump and his "well-heeled donors" believe that "one group's gain" is "another group's loss".

"For them, freedom means that the powerful can do whatever they please, whether it's fire workers trying to organise a union or put poison in out rivers or avoid paying taxes like everyone has to do," he adds.

Democrats, he says, "have a broader idea of freedom" that allows workers to provide for their familes, "breathe clean air and drink clean water" and send their kids to school "without worrying if they'll come home".

"That's the America Kamala Harris and Tim Walz believe in".

Obama is promising Democrats that Harris will be "focused on your problems" and "won't just cater to her own voters and punish those who refuse to bend the knee."

Obama also says he loves Tim Walz, who he says is "the kind of person who should be in politics - somebody who was born in a small town, served his country, taught kids, coached football, and took care of his neighbours."

"He knows who he is and what's important."

Obama goes on to say that electing Harris and Walz "won't be easy".

"Our job is to convince people that democracy can actually deliver," he says.

"Kamala understands this," he says.

Image source, Getty Images

The US is ready for a new chapter in "President Kamala Harris", Obama tells the crowd.

"America is ready for a new chapter. America's ready for a better story. We are ready for a President Kamala Harris. And Kamala Harris ready for the job," he says.

He highlights her history as a prosecutor going after big banks and child sexual abusers.

"After the home mortgage crisis she pushed me and my administration to hard to make sure homeowners got a fair settlement."

The crowd just started booing at the mention of Donald Trump - earning a rebuke from Obama.

"Do not boo. Vote," he said, a classic Obama line. The crowd cheered loudly.

Continuing his attacks on Trump, Obama says that Trump "sees power as nothing more than a means to his ends".

"He killed a bipartisan immigration deal that would've helped secure our southern border because he thought trying to actually solve the problem would hurt his campaign," he adds.

"He doesn't seem to care if more women lose their reproductive freedoms since it won't affect his life."

Barack Obama says that Donald Trump "is not losing sleep" over the plight of Americans.

"This is a 78-year-old billionaire who hasn't stopped whining about his problems since he rode down his golden escalator," he adds. "It just goes on and on."

"The other day, I heard someone compare Trump to the neighbour who keeps running his leaf blower outside your window every minute of the every day," he says.

Image source, Getty Images

Obama tells the convention "this convention has always been pretty good to kids with funny names who believe in a country where anything is possible", referring to Kamala Harris.

Then he turns to Joe Biden, saying that asking Biden to be his vice-president was one of his best decisions - echoing a line Biden himself said last night about Harris.

Obama then lists what he sees as the Biden administration's accomplishments, including on the economy and the Covid-19 pandemic.

"History will remember Joe Biden as a president who defended democracy at a moment of great danger," he says.

Bernd Debusmann Jr
Reporting from the convention

Obama says that the "torch has been passed" between Biden and Harris.

"Now it's up to all of us to fight for the America we believe in," he adds. "And make no mistake, it will be a fight."

"For all the incredible energy we've been able to generate over the last few weeks, this will still be a tight race in a closely divided country."

Image source, Getty Images

It's been 20 years since Barack Obama's first speech to the Democratic convention, a speech that launched his meteoric rise to the White House.

In 2004, Obama was a candidate to be Illinois's next senator. Four year's later, he would be the party's nominee for president.

"There is not a liberal America and a conservative America, there is the United States of America," he told delegates meeting in Boston.

Image source, Getty Images

Obama is already playing some of his best lines from campaigns past.

I'm feeling "fired up" and "ready to go", he says, referring to this 2008 campaign slogan.

The crowd responds with a standing ovation.

Image source, Reuters

Barack Obama has just walked on the stage to wild applause. He's still one of the most popular politicians in the United States nearly eight years after leaving office.

Michelle Obama introduces him as the "love of my life".

Bernd Debusmann Jr
Reporting from the convention

Image source, Getty Images

Michelle Obama is imploring Democrats to "do something" - a refrain that is being repeated loudly and enthusiastically by the crowd.

There are only 11 weeks to mobilise for Harris and Walz, she warns.

"We cannot afford for anyone to sit on their hands and wait to be called," she says.

"Consider this your official ask: Michele Obama is asking you - no, I'm telling y'all to do something."

Bernd Debusmann Jr
Reporting from the convention

Michelle Obama is now telling Democrats that they should not "forget what we are up against" at a time in which the Harris-Walz campaign has momentum.

"No matter how good we feel tonight, or tomorrow, or the next day, this is going to be an uphill battle, so we cannot be our own worst enemies."

Obama adds that "we cannot start wringing our hands" or "indulge our anxieties" about whether Harris can be elected.

Brandon Drenon
Reporting from the convention floor

Michelle Obama continues going after Trump.

In a line that gets the crowd on their feet and receives the loudest applause of the night, she says:

It’s a nod to a comment Trump made when he talked about migrants crossing the border, saying they were taking “black jobs”, in a bid to appeal to black voters.

The Trump moment went viral, spawning memes making fun of what people thought “black jobs” meant.

Bernd Debusmann Jr
Reporting from the convention

Obama has now focused directly on Trump, who she says "did everything in his power to make people fear us".

"His limited and narrow view of the world made him feel threatened by the existence of two hardworking, highly intelligent, successful people who also happened to be black," she says, referencing her and Barack Obama.

Obama also accuses Trump of "doubling down on ugly, misogynistic, racist lies as a substitute for real ideas".