A new study shows the president's health care overhaul adds at least $340 billion to the deficit over the next decade.

The report comes from a leading conservative economist, Charles Blahous, a public trustee who oversees Medicare and Social Security finances.

"Does the health care act worsen the deficit? The answer, I think, is yes," Blahous said.

The study's conclusions are in direct opposition to the Obama administration's claims that the federally mandated plan will save money in the long haul.

The White House has claimed the law will help reduce the trillion-dollar deficits America has seen under President Obama.

But the new study shows how federal accounting practices have hidden the true financial impact of the legislation.