Just 12 days before the Nov. 3 election, Republican President Donald Trump and Democratic challenger former Vice President Joe Biden meet Thursday for their final televised debate.When: 8 p.m. Iowa time, for 90 minutes without commercial interruptions.Where: Networks and cable stations including ABC, NBC, CNN, MSNBC, Fox News and PBS.Moderator: Kristen Welker, White House correspondent and “Weekend Today” co-host for NBC News.Topics: Fighting COVID-19; American families; race in America; climate change; national security; leadership.Rules: The debate commission says that to “ensure a more orderly discussion of the issues” it will allow microphones to be muted to allow each candidate two minutes of uninterrupted speaking time on each topic.