A new report from the Center on Budget and Policy Priorities (CBPP) posits that the key to increasing health insurance coverage is to expand subsidies offered through the Affordable Care Act. Although cost is the main barrier to coverage for uninsured populations, the majority of the uninsured have low incomes and are eligible for ACA marketplace options. CBPP suggests that costs of expanded subsidies could be met by scaling back the tax cuts from the 2017 Tax Cuts and Jobs Act.