Donald Trump was reported by the New York Times to be privately insulting Vice President Kamala Harris using vulgar and sexist language, leading to widespread condemnation and speculation from experts who say such attacks could cost him a key demographic. According to the Times, “Indeed, Mr. Trump has often been in a foul mood the past few weeks. He has ranted about Ms. Harris. He has called her ‘nasty,’ on ‘Fox & Friends,’ and a ‘b—-,’ repeatedly, in private, according to two people who heard the remark on different occasions.” This led former Bill Clinton White House aide Keith Boykin to s…