National: Big-bucks donations to super PACs keep the GOP race going | USAToday.com
More than two-thirds of the money to super PACs aligned with presidential candidates came from megadonors who each contributed $500,000 or more, demonstrating how a handful of wealthy interests have helped turn the GOP presidential primary into the longest-running nomination fight in a generation. No group relied more heavily on a few super donors than the political committee backing former House speaker Newt Gingrich: 96% of contributions to the pro-Gingrich Winning Our Future came from this elite group, a USA TODAY analysis shows. More than $16 million flowed from a single source: Las Vegas casino titan Sheldon Adelson and his relatives. Restore Our Future, a super PAC aiding former Massachusetts governor Mitt Romney, relied on nearly 52% of its contributions from corporations or individuals who gave $500,000 or more, the lowest share of super donors among the candidate-aligned super PACs analyzed by USA TODAY.