Julie Rovner

With the Iowa caucuses and first primaries just weeks away, many voters say they're still confused about how presidential candidates differ on health care. Here's a guide to key issues and terms.

A Supreme Court case in March will test the new five-member conservative majority. If justices strike federal abortion protections, look for a state-by-state quilt of abortion "deserts" and "havens."

Both sides say they want the high court to quickly weigh in on a case that could invalidate the federal health law. Whatever the court decides will likely have consequences in 2020 elections.

A federal court in New Orleans has declared a portion of the health law unconstitutional, asking the lower court to reconsider the rest. This leaves the future of the law in limbo.

Though it has been on the books for nearly a decade, the Affordable Care Act faces a big court challenge right now that could overturn it. Here's what happens if the federal health law goes away.

Service dogs are a common sight at Walter Reed National Military Medical Center, near Washington, D.C. But this special canine trains would-be healers how to pick the right dog for a wounded veteran.

The Biden plan released this week is an update of the Affordable Care Act with controversial differences. Among them: a "public option" that covers abortion, and subsidized premiums for more people.

The ACA is again being put to the test, after a lower court judge ruled the massive health law unconstitutional. The case might yet ricochet back to the Supreme Court ahead of the 2020 election.

After decades on the sidelines, the medical trade group is taking a more aggressive stance by fighting two North Dakota laws it says interfere with the doctor-patient relationship.

A bipartisan group of senators has been working on a plan to protect patients from unexpected medical bills. Disagreements within the health care industry could thwart those efforts.