Two things.  1. The CBO was wrong about its assessment of the ACA, so why should we trust its findings on this bill?  But the bigger question is: why does the CBO use static instead of dynamic models?  2. Michael Collins at least started a discussion on how to make the bill better.  He wrote "I recently heard former Health and Human Services Secretary Sylvia Mathews Burwell speak about rewarding our health care providers for outcomes (i.e., healthy patients) versus fee for ailment treatment. Why is that not part of the conversation?

Lowering costs and restructuring how health care professionals are paid may actually provide the resources we need to cover everyone."  Two ways to lower costs is by using health savings accounts to pay for many things out of pocket instead of going through insurance companies.  That and opening up competition by allowing health insurance to be purchased anywhere, from any company will help to lower costs.