In recent days, President Donald Trump announced, via Twitter, that "If a new HealthCare Bill is not approved quickly, BAILOUTS for Insurance Companies and BAILOUTS for Members of Congress will end very soon!"  He was presumably referring first to cost-sharing reduction subsidy payments to insurance companies required by the Affordable Care Act and, second, to the fact that members of Congress and their staff are required to buy health insurance on the ACA market instead of being allowed on the federal employee health plan.  However, unlike most people who purchase insurance via the marketplace, Congressional staffers still receive an employer subsidy.  Ending subsidy payments to insurance companies could be catastrophic to the market - so can Trump simply stop paying them?