Analysis: New research shows broad backing for different parts of the U.S. system of checks and balances, though Republicans are more likely to back stronger presidential power.
The Affordable Care Act requires insurers to cover a range of preventive services, including cancer screenings, statins and HIV-prevention medications.
The court has ruled both for and against Trump in his second term, but even the losses have given the administration fodder to continue harsh criticism of lower court judges.
The case raises broad constitutional questions about whether Congress can set up agencies that prevent the president from removing officials without cause.