Why would anybody believe them about this?
There is only one meaningful facet of today’s #CBO score for #AHCA: #CBO confirmed the current, as-presented-to-them House bill will reduce their (CBO) forecasted 10-year budget. This required on-paper budget reduction allows a Senate version of the #ACHA legislation to pass the Senate with 51 votes via the budget reconciliation process. Else the Senate version would be subject to a filibuster (a cloture vote) and thus would require 60 votes to pass. They got what they needed.
Everything else about the #CBO scoring is no more than heat and noise. The Repubs had to ask for a CBO scoring to get the process out of Democrat hands in the Senate.