The orderly transition to a more stable and affordable health-care system is merely beginning. Too much significance is attributed to Republicans adding the word “repair” to their vocabulary, as if this represents a policy change. The insurance markets really do need repair, and doing nothing isn’t realistic amid ObamaCare’s downward spiral. Uncertainty is inevitably priced into premiums, and benefits and rates for 2018 started to be designed and set months ago. They’ll be approved by regulators in the spring, so Mr. Trump’s HHS picks, Tom Price and Seema Verma, need to move fast to bring more predictability to the markets.

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