The Supreme Court has upheld the individual mandate, crucial to President Barack Obama's signature legislation and health care law overhaul, in a victory for the Obama administration, in accordance with the tax writing provision of the U.S. Constitution, Chief Justice John Roberts announced for the Supreme Court on Thursday.

The entire Affordable Health Care Act has been upheld, according to reports on news outlets.

The Affordable Health Care Act is supported by the tax clause of the U.S. Constitution, the Supreme Court held, not the Commerce clause, which the Obama administration had argued before the Court, CNN reported.

The law was upheld by a 5-4 Supreme Court ruling, according to CNN.