Examining the Congressional Budget Office Cost Estimate of the Senate Immigration Bill
 While CBO did not revise its economic analysis of the bill after passage in the Senate, in its updated budget analysis, CBO notes that the economic effects of the later version of the bill would only differ slightly from those of the previous committee-reported version. (CBO cost estimate as passed, p. 2)
 Note that the analysis of budgetary impacts was released by CBO, but the estimates were done by both CBO and the Joint Committee on Taxation (JCT), which is charged with estimating the impact of legislation on revenues. When this document refers to CBO estimates or projections, it refers to estimates by both CBO and JCT.
 Letter from Stephen C. Goss, Chief Actuary, to the Honorable Marco Rubio, May 8, 2013, http://www.ssa.gov/OACT/solvency/MRubio_20130508.pdf.
 CBO cost estimate, July 3, p. 2.
 These are “central estimates” of the full range of CBO’s estimated effects. Under the full range, CBO estimates that the bill could boost GDP by between 5.1 and 5.7 percent in 2033, although the agency acknowledges considerable uncertainty in these estimates and that the actual effects could be “well outside” this range.
 In its prior estimate, CBO indicated that the language that bars immigrants in RPI and blue-card status from federal means-tested benefits could be interpreted to permit some immigrants in these statuses to receive benefits in certain circumstances. Specifically, CBO’s estimates assume that some children and pregnant women in RPI or blue-card status would be eligible for Medicaid or CHIP (both at state option) and that some children in these statuses would be eligible for SNAP. The costs that CBO estimates in these programs as a result of this interpretation appear to be very modest, however, because most children living with undocumented parents are U.S. citizens, not undocumented immigrants, and thus are unaffected by the section of the legislation that’s in question.