LAS VEGAS—Sheldon Adelson, the billionaire mogul and power broker who built a casino empire spanning from Las Vegas to China and became a singular force in domestic and international politics has died after a long illness. Adelson died at 87 from complications related to treatment for non-Hodgkin’s lymphoma, Las Vegas Sands announced Tuesday. He was the son of Jewish immigrants, raised with two siblings in a Boston tenement, who over the second half of his life became one of the world’s richest men. The chairman and CEO of the Las Vegas Sands Corp. brought singing gondoliers to the Las Vegas Strip and foresaw correctly that Asia would be an even bigger market. In 2018, Forbes ranked him No. 15 in the United States, worth an estimated $35.5 billion. “If you do things differently, success will follow you like a shadow,” he said during a 2014 talk to the gambling industry …