Charles Koch thanks Harry Reid for helping his book sales
© Greg Nash

Republican businessman and billionaire Charles Koch thanked former Senate Majority Leader Harry ReidHarry Mason ReidKavanaugh furor intensifies as calls for new testimony grow Dems can’t ‘Bork’ Kavanaugh, and have only themselves to blame Dem senator: Confidential documents would 'strongly bolster' argument against Kavanaugh's nomination MORE (D-Nev.) on Sunday for constantly slamming him publicly, which he says has helped his book sales.

“Thank you, Harry,” Koch told potential donors at his Seminar Network conference in Colorado.

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“I owe him big. Boy, he made my book sell a lot better,” he continued.

Reid has claimed that Koch and his brother David were “waging a war on climate change,” and that they were sending “dark money” into the political system.

The Koch brothers held a weekend summit with donors in Colorado Springs and announced their family’s donor network will spend $400 million to promote a conservative agenda in the 2018 midterm elections.

Vice President Pence held an unannounced meeting with the businessman on Friday at the donor meeting.