The Koch brothers won’t be touching the Republican National Convention with a 10-foot poll, according to a recent ABC report.

They and their major fundraising network will be staying at home, ABC reported.

“Why go?” Charles Koch told ABC. “We’re not interested in politics. We’re interested in moving us towards a culture and policies that will enable people to improve their lives.”

Koch says he has been grossly disappointed in the Republican primary where businessman Donald Trump is leading, but despite his concerns about the state of the race, he told ABC News that he didn’t see a scenario where someone like Paul Ryan could steal the nomination away from Trump at a contested convention.

“If he did [win], I mean that would create the impression this whole thing is rigged, which — that’s the opposite of the direction we want to go,” Koch told ABC.

Koch had also told ABC News in an interview released previously that it is “possible” Democrat Hillary Clinton is preferable to the GOP’s eventual nominee.