Final answer:
The 'Window of Opportunity' in the public policymaking process in the U.S. refers to a specific period of time when the political climate is favorable for a particular policy to gain support and be enacted.
Step-by-step explanation:
The 'Window of Opportunity' in the public policymaking process in the U.S. refers to a specific period of time when the political climate is favorable for a particular policy to gain support and be enacted. This window opens when there is a heightened awareness and sense of urgency about a problem, and it closes when the public's attention shifts to other issues or when opposition to the policy becomes strong. During the 'Window of Opportunity,' policymakers have a better chance of introducing and passing their desired policy.