The Koch Brothers are pure evil. They are the poster children for the lying hypocrites who claim to be Christian, but regard greed as the ultimate virtue. They own Cory, who is now caught between his dark masters and any chance of re-election. His attendance at this gathering of evil makes It clear he has chosen the dark side. When a Koch says he is "optimistic" it means he sees a day when slavery is legal again and he won't have to deal with inconveniences like labor laws or environmental laws.