KEY POINTS
  • James Murdoch, one of media mogul Rupert Murdoch's sons, quietly invested $100 million in his nonprofit foundation, Quadrivium, which then gave a chunk of the money to political groups in the 2020 election cycle.
  • CNBC found the enormous contribution from James Murdoch and his wife, Kathryn Murdoch, after reviewing the 501(c)(3) group's 990 tax return from 2019, which Quadrivium provided.
  • The $100 million donation marks the couple's largest known contribution to Quadrivium, which they launched in 2014, or any political effort.
  • James and Kathryn Murdoch have largely backed nonpartisan and Democratic-leaning causes.
James Murdoch (L) and his wife Kathryn Hufschmid arrive at St Bride's church on Fleet Street in central London on March 5, 2016, to attend a ceremony of celebration a day after the official marriage of Australian born media magnate Rupert Murdoch and former model Jerry Hall.

James Murdoch, one of billionaire media mogul Rupert Murdoch's sons, quietly invested $100 million in his nonprofit foundation, which then used a large chunk of the money to fund political groups during the 2020 election cycle.

CNBC found the enormous contribution from James Murdoch and his wife, Kathryn Murdoch, after reviewing the 501(c)(3) group's 990 tax return from 2019, which the foundation provided. The Murdochs launched the foundation, called Quadrivium, in 2014.