For now, however, what’s been confirmed is that the progressive bloc has found a constructive way to exercise their power. This moment was a long time in coming: You may recall that progressives tried to win key concessions on the Affordable Care Act but that ended in ignominious failure.

Here’s the bottom line: The idea that centrists in the party should get to dictate what’s “possible” is a more serious threat to the Biden agenda than progressives are. If progressives can successfully dispel that idea, it become more likely, rather than less, that a robust version of the Biden agenda passes. And the White House and Democratic leaders appear to know it.