$54.44 million

Amount casino billionaire Sheldon Adelson, along with members of his family, has given to super PACs to help elect a variety of Republican candidates, from presidential hopeful Mitt Romney down to a House of Representatives race in New Jersey. Adelson, “among those whose contributions are disclosed, is far and away the largest donor to independent political efforts in both the 2012 election and in any single election in modern history,” the Huffington Post reports.