This updated issue brief finds that under current legislation, just over half (56 percent) of the uninsured became eligible for financial assistance with health insurance coverage through Medicaid, CHIP or subsidized private coverage through the new marketplaces.
In states that have expanded Medicaid eligibility under the ACA, 68 percent of the uninsured became eligible for assistance, compared with only 44 percent in states that have not expanded Medicaid.
If nonexpansion states were to expand Medicaid eligibility, 71 percent of their uninsured would be eligible for assistance.
Among states expanding Medicaid, the ACA is projected to reduce the number of uninsured people by 56 percent, compared with a 34 percent reduction in the uninsured among states not expanding Medicaid.
If the states that have not expanded eligibility were to do so, the number of uninsured in those states would decrease by 59 percent.