Why is the GOP desperate to pass this terrible healthcare bill? The Koch brothers threatened them

https://www.dailykos.com/stories/2017/9/21/1700431/-Why-is-GOP-so-desperate-to-pass-this-terrible-health-care-bill-The-Koch-brothers-threatened-them
"Graham and Cassidy are pulling out all the stops in their attempt to sway votes ahead of this deadline. They’ve even gone so far as to promise key swing vote Sen. Lisa Murkowski that Alaska can keep Obamacare! You cannot make that up. So why are Republicans so laser-focused on gutting health care and tackling “tax reform,” which is nothing more than cutting taxes for the wealthy? Because The Swamp ordered them to do it and Republicans are beholden to their swamp masters above all others. The Koch brothers went to a Republican retreat in June and ordered them to gut health care and cut taxes—or else: At a weekend donor retreat attended by at least 18 elected officials, the Koch brothers warned that time is running out to push their agenda, most notably healthcare and tax reform, through Congress. One Texas-based donor warned Republican lawmakers that his “Dallas piggy bank” was now closed, until he saw legislative progress. “Get Obamacare repealed and replaced, get tax reform passed,” said Doug Deason. “Get it done and we’ll open it back up.” Republicans are terrified the “Dallas piggy bank” won’t be ponying up to prop them up and buy elections like they’ve so reliably done in the past. The Koch brothers and their allies want these things, and they want them right now. There is urgency,” said Tim Phillips, who leads Koch network’s political arm, Americans for Prosperity, at the industrialist brothers’ retreat in Colorado Springs. “We believe we have a window of about 12 months to get as much of it accomplished as possible before the 2018 elections grind policy to a halt.” The window for action may be even smaller, some Koch allies warned at the weekend retreat that drew roughly 400 participants to the heart of the Rocky Mountains. The price for admission for most was a pledge to give at least $100,000 this year to the Kochs’ broad policy and political network. So, we’re at a crossroads here. Will the American people win, or will The Swamp win?"