The Supreme Court said Friday it will review the constitutionality of the Affordable Care Act’s no-cost coverage mandates for certain preventive care services, putting the landmark health care law in front of the justices again just as President-elect Donald Trump – who tried to repeal the law during his first presidency – returns to the White House.

The U.S. Supreme Court agreed on Friday to decide the legality of a key component of the Affordable Care Act that effectively gives a task force established under the landmark healthcare law known as Obamacare the ability to require that insurers cover preventive medical care services at no cost to patients.

A ruling for the conservative Texas employers who filed the case would erode the coverage of tens of millions of people who get their health insurance from their employer or through Obamacare’s marketplace,