Biden vows to defeat Trump, end US ‘season of darkness’

Democratic presidential candidate former Vice President Joe Biden speaks during the fourth day of the Democratic National Convention, Thursday, Aug. 20, 2020, at the Chase Center in Wilmington, Del. (AP Photo/Andrew Harnik)

WILMINGTON, Del. — Joe Biden accepted the Democratic presidential nomination Thursday night with a vow to be a unifying “ally of the light” who would move an America in crisis past the chaos of President Donald Trump’s tenure.