America's nine highest justices are currently hearing arguments both for and against the Affordable Care Act – known by its detractors as ObamaCare – hailed by many as President Barack Obama's signature piece of legislation.

The court has granted six hours of oral argument time for the case, the most time given an issue in four decades. Oral arguments began Monday and are scheduled to conclude Wednesday, March 28. 

Though a study released by the Urban Institute found that only two percent of Americans would be subject to the bill, others argue that an individual mandate is unconstitutional and is another example of the federal government overstepping its bounds.

The law is expected to be upheld, the Huffington Post reports.

The case will be decided in June.