U.S. President Donald Trump and Democratic challenger Joe Biden offered sharply contrasting views on the still-raging coronavirus pandemic at today’s final presidential debate, seeking to persuade the few remaining undecided voters 12 days before their November 3 contest. Trump, a Republican, adopted a more restrained tone than he did during a chaotic first debate in September, when he repeatedly interrupted Biden. But Thursday's clash still featured plenty of personal attacks between two men who evince little respect for each other, and Trump kept fact-checkers busy by leveling unfounded corruption accusations at Biden and his family. The absence of disruptions yielded…