Donald Trump 'wrong' president: Michelle Obama urges US to vote for Biden

Launching a blistering attack on Trump, Obama said children are torn from their families and thrown into cages and pepper spray and rubber bullets are used on peaceful protests for a photo op

Michelle Obama has ripped through Donald Trump at the opening of the Democratic National Convention, saying he is the "wrong president for our country" and urged Americans to vote for his challenger Joe Biden "like our lives depend on it."

In an emotional recorded message to the convention, the former US first lady said last four years had been difficult to explain to America's children.

"They see our leaders labelling fellow citizens enemies of the state, while emboldening torch-bearing white supremacists," she said.

The four-day Democratic National Convention (DNC) was initially scheduled to be held in Wisconsin but it