So the GOP tried to argue to the Senate Parliamentarian that because the reconciliation fixes to the HCR bill(s)would have some tangential effect on Social Security then reconciliation was not allowed (because reconciliation cannot be used to tinker with Social Security). See crooksandliars
Many say that this was just a dilatory tactic, which it was. However, the GOP is nothing if not clever. There is always more than one angle to their attacks. Disregard that the Conservagreeds are hypocritical for arguing that there will be a slight effect on Social Security when their tax cuts had just that effect several years ago. It didn't trouble them then. But then they have no consciences to be troubled.
Remember they don't like Social Security, just like they don't like Medicare Medicaid, the VA or public education. No statement made by Rethuglicans about protecting any of those institutions should be taken seriously.