Sheldon and Miriam Adelson
Sheldon Adelson, Las Vegas Sands Corporation's billionaire CEO, has spent $16 million so far in Republican super PAC donations. He's giving $7.5 million to Winning Our Future, $5 million to Restore Our Future, $2.5 million to Congressional Leadership Fund and $1 million to Freedom PAC. His wife, Miriam, also made the big donors list, spending $15 million across the same groups, except for Freedom PAC. Adelson was also a big supporter of Newt Gingrich in the primaries.