I. Introduction

II. Overview of Presidential Transitions

III. Climate Change as an Illustration of Policy Change ... A. Obama-Era Climate Change Policy ... B. Trump Administration Changes to Climate Change Policy

IV. Constraints on Presidential Policy Reversals

V. Conclusion

VI. Question and Answer Session ... A. Question 1—Failure to Comply with Paris Accord … B. Question 2—Informal Agency Rulemaking ... C. Question 3—The Kyoto Protocol ... D. Question 4—Chevron Deference ... E. Question 5—Separation of Powers