The final showdown: 5 things to watch in last Trump-Biden debate

Any Americans still on the fence — and who haven't been among the hordes of early voters — will have one final chance to hear from President Donald Trump and Joe Biden in their last debate Thursday, during which the president will try to re-energize his base and close the polling gap behind Biden.

Thursday's debate in Nashville, Tennessee, was supposed to be the third faceoff of 2020, but will instead be the second of only two presidential debates after Trump declined to participate in one scheduled for last week...