Real-estate developer Donald Trump wrote a letter to CNN boss Jeff Zucker on Wednesday that called for him to donate the profits from next week's presidential debate to charity.
The Republican front-runner noted that CNN reportedly hiked its advertising rates 40 times its normal rates for the September 16 debate, which the network is hosting.
"While I refuse to brag, and you know very well, this tremendous increase in viewer interest is due 100% to 'Donald J. Trump,'" Trump wrote to Zucker.
Trump's campaign forwarded the letter to reporters and shared it on social media.