A former Bush administration official and leading conservative economist says President Obama's health care law will add at least $340 billion to the national deficit, a claim the White House denies.

In a study to be released Tuesday, Charles Blahous, who serves as public trustee overseeing Medicare and Social Security finances, says federal accounting practices have obscured the true fiscal impact of ObamaCare.

Officially, the health care law is still projected to help reduce government red ink. The Congressional Budget Office, the government's non-partisan fiscal umpire, said in an estimate last year that repealing the law actually would increase deficits by $210 billion from 2012-2021.


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