In court, the Trump administration is trying to get all of Obamacare erased. But at the White House, President Trump and his health officials are busily using the law to pursue key proposals.

Last week, the president highlighted a policy in the works meant to narrow the gaps between what drugs cost in the United States and overseas. On Wednesday, he signed an executive order to transform care for patients with kidney disease.

Both measures were made possible by a provision in the Affordable Care Act, and both would be effectively gutted if the administration’s position prevailed in court.

In between, administration lawyers told a receptive panel of judges in New Orleans that the entire Affordable Care Act should be overturned.