U.S. Republican President Donald Trump and his Democratic challenger, former Vice President Joe Biden, engaged in a spirited debate Thursday night just ahead of the Nov. 3 national presidential election, presenting the nation with sharply divergent views of where they would take the country over the next four years.For 90 minutes, they traded barbs. They attacked each other’s positions on controlling the coronavirus and curbing the continual advance of the country’s world-leading death toll of more than 222,000. They argued over health care, wages for low-income workers, crime, race relations in the U.S., climate change and leadership in the Whitemore