Sheldon Adelson, billionaire casino magnate and Republican donor, died on Monday, according to a statement from the Las Vegas Sands company. Adelson, a supporter of outgoing President Donald Trump, was 87. 

"Our founder and visionary leader, Sheldon G. Adelson, passed away last night at the age of 87 from complications related to treatment for non-Hodgkin's Lymphoma," the statement said.