WASHINGTON (AP) — The Supreme Court announced Monday that it will use an unprecedented week's worth of argument time in late March to decide the constitutionality of President Barack Obama's historic health care overhaul.

The high court scheduled arguments for March 26th, 27th and 28th over the Patient Protection and Affordable Care Act, which aims to provide health insurance to more than 30 million previously uninsured Americans. The arguments fill the entire court calendar that week with nothing but debate over Obama's signature domestic health care achievement.

With the March dates set, that means a final decision on the massive health care overhaul will likely come before Independence Day in the middle of Obama's re-election campaign. The new law has been vigorously opposed by all of Obama's prospective GOP opponents.