In his four decades as the defining figure of American pro wrestling, Vince McMahon was the man behind the megastars. He was also a performer in his own show, acting as the diabolical "Mr. McMahon"-- a figure you may have more in common with the real Vince than he would care to admit. Just as important, McMahon is one of Donald Trump's closest friends; McMahon and his wife, Linda, are major Republican donors, and Linda served in Trump's cabinet. Riesman...