Washington, June 4 -- Mounting one of his most scathing attacks against Donald Trump, former US Vice President Joe Biden said the President's narcissism has become more important than the nation's well-being.

"He thinks division helps him," Biden said in a speech at Philadelphia's City Hall.

Bashing Trump's handling of the protests and riots in the country following the murder of George Floyd at the hands of a police officer, the presumptive Democratic presidential nominee said: "the American people can be forgiven for believing that the president is more interested in power than in principle, more interested in serving the passions of his base than the needs of the people in his care."

Biden's comments came after police used tear gas, f...