By THOMAS L. FRIEDMAN President Donald Trump is such an awful human being that just writing about him feels degrading. What president would denigrate his predecessor in front of China’s leader the way Trump mocked Joe Biden, now suffering from cancer, by pointing out that a framed picture of an autopen was hanging in the White House instead of Biden’s portrait? Alas, though, when someone as morally warped as Trump — whose first secretary of state called him a “moron” — assumes this much…
