evidence: As currently written, the Build Back Better bill would add about $158 billion to deficits over 10 years. Major spending would go to child care and child tax credits, among other things. Republicans asked the Congressional Budget Office to estimate what would happen if temporary programs in the bill were extended through all 10 years. The bill being considered in the Senate sets time limits on those programs. It would be up to a future Congress to determine whether to change those limits.