WASHINGTON, D.C. - The future of the Affordable Care Act and health care is moving forward in the courts.

On Wednesday, a federal appeals court ruled 2-1 striking down part of the Affordable Care Act. It determined that the law’s so-called individual mandate requiring all Americans to carry health insurance is unconstitutional.

The challenge was brought by Texas and a group of Republican states after a failed 2017 congressional repeal effort.

The ruling is unlikely to cause an immediate change to health coverage for most Americans. The Trump administration already cut the mandate as part of the 2017 tax reform law.

But, the case is now likely to head to the Supreme Court where justices are expected to hear the case for the third time. A ruling may not happen until after the 2020 presidential election.

This ruling leaves the rest of the A.C.A. in limbo. Democrats on Capitol Hill are wondering what’s next.

“If the lawsuit were to succeed, the Affordable Care Act – all of it – would be declared unconstitutional,” said U.S. Sen. Bob Casey. “So all of the protections for pre-existing conditions would be gone.”

Casey said the ruling could also threaten employer-based health insurance. That’s how more than 158 million Americans receive their coverage, according to a Commonwealth Fund report.