Once again, Sen. Krysten Sinema has proven herself a foil to the Democratic Party’s liberal plans — and thank goodness.

The Arizona Democrat announced on Wednesday that she will not support Democrats’ proposed $3.5 trillion reconciliation package, which has been stuffed full of left-wing priorities that range from free child care to an expansion of Medicare. Sinema didn’t say she had a problem with any one of the specific policies included in the package, but she did take issue with its overall cost.