https://www.dailykos.com/stories/2017/11/30/1719833/-McCain-will-vote-for-tax-cuts-and-to-end-cancer-treatment-for-Medicare-patients
"We know the tax bill is going to take $25 billion from Medicare immediately, because it will trigger automatic spending cuts and only part of Medicare won't be shielded. The part that will be cut is the part that pays for expensive chemotherapy drugs. The last time these cuts were triggered, cancer patients were denied treatment. And it's going to happen again. The last time it was resolved when the government shutdown ended. This time it's permanent."