The justices heard arguments in a constitutional challenge to a task force that decides what treatments are covered at no cost.

Challengers said the Preventive Services Taskforce is unconstitutional because its members should be appointed by the president and approved by the Senate.

The Supreme Court seemed likely to uphold a key preventive-care provision of the Affordable Care Act in a case heard Monday. Conservative justices Brett Kavanaugh and Amy Coney Barrett appeared skeptical of arguments that Obamacare's process for deciding which services must be fully covered by private insurance is unconstitutional.