Has the Affordable Care Act's (ACA) 2010 dependent coverage provision (DCP) created a positive policy‐opinion feedback loop among its stated beneficiaries—adults under age 26? Such feedbacks are well documented around programs like Social Security that make explicit government transfers, but may be more limited around policies that—like the DCP—channel private‐sector resources to their target populations. It is also unknown whether single provisions within multipronged policies can elicit feedbacks around the parent policy as a whole. This article tests whether 19–25‐year‐olds differ from adults aged 26–34 in support for the ACA, civic predisposition, political efficacy, and political participation in 2012. Analyses also compare 2012 to 2008. The article then studies insured 19–25‐year‐olds in 2014, testing whether those using parental insurance differed from those using other insurance in ACA support, responses to threats to the ACA, and beliefs that the ACA is personally helpful. Young adults show virtually no signs of DCP‐inspired political feedbacks. These results do not appear strictly attributable to the youth of this target population. Rather, feeble feedbacks may owe to ACA attitudes resting on factors other than the DCP, to Democrats failing to mobilize young adults, and to the DCP's limited ability to reach low‐income earners.