If politicians evaluate a domestic policy and grade it as ineffective, what would most likely be the next step?

They would have to a fight and argue about what is the next step in Congress, then decide to cut the policy (or not) and draft a new one (or not) like replace and repeal of Obama care going on right now, they want to replace with trump care, and a lot of people won't be covered so it is contentious in congress.

"teotihuacan was the cultural center of the zapotecs".