WASHINGTON (AP) — Democratic sources tell the Associated Press that the Obama administration plans to move ahead with major parts of the president's health care law if its most controversial provision doesn't survive a looming Supreme Court decision.

Even if the requirement that most individuals have health insurance is declared unconstitutional, the remaining parts of the law could have far-reaching impact.

About half the 30 million people originally estimated to get health insurance might still be able to obtain it.

A major expansion of Medicaid would move forward and middle-class people would be eligible for tax credits to buy private coverage.

Two Democratic sources closely involved with the legislation spoke on condition of anonymity to avoid appearing out of step with the administration, which has not wanted to discuss contingency plans.