For Biden and Trump, a debate rematch with even greater risks and rewards

President Donald Trump, left, and Democratic presidential nominee Joe Biden participate in the second presidential debate at Belmont University in 2020, in Nashville, Tenn. (Erin Schaff/The New York Times)

The debate between President Joe Biden and former President Donald Trump this week will be the highest-stakes moment of their rematch, plunging two presidents into an extraordinarily early confrontation before a divided and angry nation.