Fiscally minded "Blue Dog" Democrats in the House and conservative Democrats in the Senate are worried about estimates of how much the plans will cost.

CNN: Senate panel votes down public option for health care bill

The CBO estimates that the Senate bill would reduce the number of uninsured by about 31 million, the main GOP plan would reduce the number by about 3 million.

NPR: How Health Overhaul Would Affect The Uninsured

The scores cited below are 10-year estimates from the Joint Committee on Taxation provided by the Senate Finance Committee.

FORBES: Fiscal Cliff Tax Deal: What Does It Mean for Small Business?

Nobody in Congress had ever heard of a weapons program costing that much, so by the time senior Pentagon officials appeared at a hearing before the Senate Armed Services Committee on May 19 to explain the new cost estimates, they faced a firestorm of criticism.

FORBES: Massive Cost Estimate For Fighter Program Is Misleading

The latest cost estimates from the Government Accountability Office (GAO), published in May to coincide with a Senate Armed Services Committee hearing on the F-35 programme, were shocking.

ECONOMIST: The defence industry