1. President Trump doubled down on his surprise decision to try to scrap the entire Affordable Care Act. “If the Supreme Court rules that Obamacare is out, we’ll have a plan that is far better than Obamacare,” he said.

Our reporters reconstructed how Mr. Trump came to his decision.

They describe a heated meeting in the White House on Monday, in which Mick Mulvaney, Mr. Trump’s acting chief of staff, pressed the president to keep his campaign promises to upend the law and urged him, along with other officials, to try to seize control of the health care issue from Democrats.