Sheldon and Miriam Adelson applaud Nobel Peace Laureate Elie Wiesel at a round-table discussion on Capitol Hill on March 2. Casino magnate and Republican megadonor Sheldon Adelson and his wife, Miriam , each gave the legal maximum $2,700 to Texas Sen. Ted Cruz ‘s campaign in November, reports filed late Sunday with the Federal Election Commission showed. Mr. Adelson, who in 2012 poured more than $100 million into Republican campaigns, has not yet endorsed a candidate in the 2016 cycle.