Question: How were Senate Rethugs able to vote to repeal the ACA?

How were they able to use the Budget Reconciliation process to do that and avoid a filibuster?

They've never been able to do that before, because repealing the ACA would trash the budget, not help it -- and the BR process is only supposed to be for measures that help the budget.

So does anyone know how they were able to use BR this time, when they weren't allowed to all the previous times?

If they could now, they certainly could if the Rethug is elected President.