Washington once again stands at a moment of crisis — only this time, Democrats and Republicans are not negotiating a way to avoid it. They are not even speaking to one another.

The cumulative effect of almost three years of governing by near-death experience is becoming clear.

Instead of bringing a resolution, each close call has left the parties further apart. These wrenching standoffs have only made them more entrenched. Their focus now rests almost exclusively on what cannot be reconciled and on scores to be settled, rather than on areas where they might actually find common ground.