WASHINGTON (AP) — President Barack Obama's health care law is snarled in another big legal battle, with two federal appeals courts issuing contradictory rulings on a key financing issue within hours of each other Tuesday.

But the split rulings don't necessarily mean another trip to the Supreme Court for the Affordable Care Act.

And White House spokesman Josh Earnest immediately announced that millions of consumers will keep getting financial aid for their premiums — billions of dollars in all — as the administration appeals the one adverse decision.

In that first ruling, a divided three-judge panel in Washington called into question the subsidies that help millions of low- and middle-income people afford their premiums, saying financial aid can be provided only in states that have set up their own insurance markets, or exchanges.

About 100 miles to the south in Richmond, Virginia, another appeals court panel unanimously came to the opposite conclusion, ruling that the Internal Revenue Service correctly interpreted the will of Congress when it issued regulations allowing health insurance tax credits for consumers in all 50 states.

Split appeals court decisions are a classic route to the Supreme Court. But in this situation, it's far from clear what will happen because the administration still has a legal card to play.

Since the Washington case was decided by a three-judge panel, the administration will ask the full 11-member appeals court to hear the case. The full U.S. Court of Appeals for the District of Columbia Circuit has seven judges appointed by Democratic presidents, including four by Obama.

If the full court comes out in favor of the administration, the prospect of Supreme Court involvement would be greatly diminished. On the other hand, if the full Washington court stays out of it or, after a hearing, essentially leaves the panel's decision in place, then the Supreme Court would almost certainly weigh in.

Democratic appointees also constitute a majority of the full appeals court in Richmond.

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