Obama administration: Don't worry about that $111 billion increase in the cost of Obamacare. It is only a budget technicality .

A budget technicality? $111 billion?

WASHINGTON – Cost estimates for a key part of President Obama's health care overhaul law have ballooned by $111 billion from last year's budget, and a senior Republican lawmaker on Friday demanded an explanation.

House Ways and Means Committee Chairman Dave Camp, R-Mich., wants to know by Monday why the estimated ten-year cost of helping millions of middle-class Americans buy health insurance has jumped by about 30 percent.

Administration officials say the explanation lies in budget technicalities and that there are no significant changes in the program.