Joe Biden vowed to heal a country battered by a deadly pandemic and an economic catastrophe by uniting all Americans, while warning that President Donald Trump would go on stoking hatred and fear if elected to another four-year term.

"Here and now, I give you my word: if you entrust me with the presidency, I'll draw on the best of us, not the worst," Biden said as he accepted the Democratic presidential nomination for an election 75 days away...