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Good morning.

Here’s what you need to know:

• “Let Obamacare fail,” Trump says.

With the collapse of the Republican effort in Congress to replace the Affordable Care Act, President Trump suggested a new plan on Tuesday: manage the health law badly. He has considerable leverage to do so, and could cut off subsidy payments to insurers or stop enforcing the mandate that most Americans have health insurance.

We looked at how divisions in the Republican Party led to the failure of the Senate bill, and examined the language in the president’s tweets, which shows that his talent for distilling arguments into compact slogans didn’t work for the health proposal.

Mr. Trump also faces the prospect that the most prominent legacy of his predecessor, Barack Obama, could remain intact, our chief White House correspondent writes.